Brooks glycerin stealthfit 21

Learn more about the Brooks glycerin stealthfit 21 female running shoes, including key features, performance, reviews, model updates, and more.

Brooks glycerin stealthfit 21

Price

329

Rating

High

Popularity

Moderate

The Brooks Glycerin StealthFit 21 is a premium, high-cushion running shoe designed for comfort and breathability, positioned as a top-tier option within Brooks' lineup, offering a snug fit compared to the traditional Glycerin 21.

8 colorways

Colorway: COCONUT/CHATEAU GREY/BLACK

Widths available: normal

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Summary

The Brooks Glycerin StealthFit 21 is a high-performance running shoe designed for runners seeking a plush and adaptable fit. It features a streamlined, sock-like StealthFit construction that conforms to the foot for a snug and supportive feel. This model incorporates Brooks' DNA LOFT cushioning throughout the midsole, offering an exceptionally soft underfoot experience that caters to long-distance runners who prioritize comfort. Positioned in Brooks's lineup as a premium cushioned option, the Glycerin StealthFit 21 stands alongside other models like the Ghost and Adrenaline. However, it distinguishes itself by focusing on maximum comfort and a seamless fit, compared to the Ghost's balance and the Adrenaline's emphasis on stability. This makes it an ideal choice for neutral runners desiring a plush ride without compromising on support or fit adaptability.

Surface

road

Cushioning

MinLowMediumHighMax(31mm)

Breathability

LowMediumHigh(stealthfit upper)

Weight

266g

Heel-to-Toe Drop

10mm0mm14mm

Support

NeutralLightHigh

Width options

normal

Grip

LowMediumHighMax

Suitability

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Pros & Cons

AI-powered

Fittir conducts a detailed analysis of the Brooks glycerin stealthfit 21 to provide you with a comprehensive overview of the shoes features, pros, and cons based on 25 wear-tester reviews.

Summary: The Brooks Glycerin Stealthfit 21 is highly regarded for its exceptional comfort, plush cushioning, and secure fit, making it an excellent choice for daily training and long-distance runs. However, it may feel slow for faster paces and has a narrower fit that could be less suitable for some runners, particularly in warmer conditions..

Most Mentioned Pros

Most Mentioned Cons

cushion
Cushion feeling: Soft

The most common feedback is that the cushioning may feel too soft for some runners, which could affect their comfort and responsiveness preferences.

firmness (5)

softness (3)

lightweight (2)

shock absorption (2)

durability (2)

midsole (2)

comfort (2)

stack height (1)

Pros

"It is fairly lightweight for its level of cushioning, which is a notable feature for long runs."

lightweight

cushion

long runs

"The shoe's lightweight construction enhances overall comfort during runs."

lightweight

comfort

long runs

"The 2 mm extra stack height contributes to a plusher ride compared to previous models."

plush ride

cushion

"The cushioning design provides good shock absorption, making it comfortable for long runs."

shock absorption

long runs

"The DNA LOFT v3 cushioning offers superior shock absorption, making runs feel easier."

DNA LOFT

cushioning

impact reduction

"The cushioning in the Glycerin 21 is plush and comfortable, enhancing the running experience."

soft

plush

comfort

"The Brooks Glycerin 21 features an exceptionally soft cushioning system for a comfortable run."

cushioning

comfort

DNA Loft v3

"The shoe provides excellent cushioning, delivering a soft yet bouncy feel."

cushioning

bouncy

comfort

"The cushioning level remains firm despite being softer than its predecessor, contributing to its potential durability."

firm

durable

"The DNA Loft v3 foam has been improved for added comfort and durability."

DNA Loft v3

added foam

durability

"The Brooks Glycerin 21 features an additional 2mm of DNA Loft v3 cushioning, enhancing overall comfort and performance."

DNA Loft v3

additional cushioning

effortless ride

"The midsole design aids in reducing fatigue during long-distance runs."

fatigue reduction

long distance

midsole engineering

"The use of supercritical foam enhances cushioning and responsiveness."

cushion

responsive

"The midsole uses supercritical foam, which contributes to the comfort and balance between firmness and plushness."

supercritical foam

balance

comfort

"The Glycerin 20 features the softest midsole ever made by Brooks, enhancing the overall running experience."

softness

liveliness

nitrogen infused

"Designed for long-distance running, the shoe provides sufficient cushioning."

cushioning

long distance

adequate

"The shoe features a high heel stack, designed for extensive use and cushioning."

high stack

extensive use

cushioned

"The Glycerin 21 is praised for its exceptional cushioning, making it ideal for long runs."

cushioning

long runs

softness

"The new DNA Loft V3 foam provides a softer and more enjoyable underfoot experience."

softness

bounce

lightweight

"The shoe’s cushioning and feedback offer a balance between softness and responsiveness."

cushioning

responsiveness

"The cushioning offers great responsiveness and support during runs."

comfort

support

flexibility

"The Brooks Glycerin Stealth Fit 21 offers a responsive cushioning system, providing a dynamic running experience."

responsiveness

cushioning

dynamic

"The Brooks shoes have great cushioning that is responsive during runs."

responsive

cushioning

"The shoes provided good cushion, which is essential for long-distance running."

cushion

long-distance

support

"The Brooks Glycerin stealth fit GTS 21 offers exceptional cushioning for a comfortable running experience."

cushioning

comfort

"The Brooks Glycerin Stealth Fit 21 features ultra-soft cushioning that enhances long runs."

cushioning

long runs

comfort

"The DNA V3 Loft midsole provides a plush and comfortable cushioning experience."

DNA V3 Loft

midsole

cushioning

"The sole design contributes positively to the feel of the shoe during runs."

sole design

cushioning

"The new DNA Loft v3 midsole technology provides a different and improved experience over its predecessor."

upgrade

innovation

experience

"The midsole provides a solid feel underfoot compared to the previous model (Glycerin 22)."

midsole

solid

cushioning

"The DNA Loft cushioning provides exceptional comfort for long runs."

comfort

cushioning

long runs

Cons

"The new midsole may not appeal to those who prefer softer, squishier cushioning."

not soft enough

cushioning preference

user comfort

"The added softness from the new foam may detract from feel for those preferring a firmer ride."

softness

responsiveness

"The cushioning may feel overly soft for some runners who prefer a firmer feel."

cushioning

softness

responsiveness

"The shoe may feel a bit more solid underfoot compared to other models, affecting comfort preferences."

midsole feel

cushioning

"There is a desire for a firmer feel underfoot that some may not find with the Glycerin 21."

cushion

stability

"The shoe may be too soft for some runners, affecting responsiveness."

softness

responsiveness

easy-paced

"The shoe is described as 'too soft' which may hinder more dynamic running experiences."

cushioning

performance

"The cushion was excessively soft, lacking the desired responsiveness."

too soft

lack of responsiveness

"Some users might find the GTS version slightly less soft due to additional support features."

softness

support

gts

"The cushioning may not provide enough feedback for some runners."

cushioning

feedback

softness

"There was not enough cushioning for long-distance runs, raising support concerns."

insufficient cushioning

support concern

"The midsole lacks notable flash or impressive features, which may disappoint some runners."

design

visual impression

"The midsole cushioning of the Glycerin 21 is not as favorable as that of its successor, Glycerin 22."

comfort

comparison

cushion

"The Glycerin 21 is not as cushioned as other shoes in the same price range."

cushion

comparison

value

comfort
Breathability: Less breathable

The main points to note are that the shoe is frequently praised for its overall comfort and plush feel, but it also has significant complaints about its lack of responsiveness and issues with breathability.

fit (3)

support (2)

breathability (2)

daily-wear (1)

materials (1)

immediate feel (1)

premium feel (1)

heel comfort (1)

Pros

"The Glycerin Stealthfit 21 is extremely comfortable, making it ideal for daily wear."

daily use

upper comfort

underfoot cushioning

"The materials used are of high quality, adding to the plush feeling of the shoe."

plush

high quality

padded

"The shoe is designed for a quick wear-in period, providing comfort right out of the box."

quick wear-in

immediate comfort

neutral ride

"The overall comfort of the shoe is plush and premium, enhancing the running experience."

plush comfort

wider platform

comfortable

"Brooks shoes are acknowledged for their quality of fit and comfort, particularly around the heel."

comfortable heel

quality fit

Brooks execution

"The shoe's plushness delivers a heightened level of comfort during runs."

plush

comfort

bounce-back

"The Glycerin 21 offers a luxurious and soft step-in feel."

step-in feel

luxurious

soft

"The shoe features a sock-like tongue that enhances comfort and fit."

comfort

fit

tongue

"The shoe provides a comfortable fit ideal for long-distance running."

comfort

fit

long runs

"The shoe offers a comfortable fit that adapts well to the foot."

comfortable fit

adaptability

"The sock-like tongue design enhances comfort and security during runs."

sock-like tongue

secure fit

comfort

"The Brooks Glycerin Stealth Fit 21 maintains great arch support and comfort for long runs."

arch support

comfort

long runs

"The Brooks Glycerin Stealth Fit 21 provides excellent arch support."

arch support

"The shoes are extremely comfortable, making them a great choice for long runs."

comfort

fit

sock design

"The Brooks Glycerin Stealth Fit 21 allows for breathability during runs."

breathable

comfortable

"The shoe offers excellent breathability and comfort during runs, making it suitable for long distances."

comfort

long distance

breathability

"The breathable upper knit material is great for warmer weather."

breathable

upper

summer

"The shoe features a comfortable, soft sock liner."

sock liner

comfort

memory foam

"The cushioning makes it suitable for transitioning runners."

comfort

cushioning

new runners

"The upper of the Brooks Glycerin Stealth Fit 21 is very comfortable and has a relaxed feel."

comfort

design

feel

Cons

"While comfortable, the shoe lacks responsiveness, making it less suitable for quick runs."

comfort

responsiveness

performance

"The upper material is very warm, which can cause discomfort during runs."

warmth

upper

discomfort

"There is insufficient padding in the heel, which might not satisfy those who prefer more cushioning in that area."

heel padding

cushioning preference

"The breathability of the stealth fit upper is poor compared to the original version."

breathability

heat

discomfort

"The Fit Knit upper might retain heat on hot days, causing discomfort for some runners."

breathability

heat retention

comfort

"The engineered mesh upper is replaced with a knit upper that some runners might find uncomfortable."

engineered mesh

knit material

comfort level

"The heel design is not very noticeable during walking."

heel

defined sides

feel

"The lacing system in the stealth fit edition leads to lace pressure if tightened, affecting comfort."

lace pressure

comfort issues

tight fit

"The shoe does not provide enough arch support for some runners, potentially leading to discomfort during longer runs."

arch support

discomfort

long runs

"The shoe's cushioning might not suit all arch types, particularly those with normal arches."

arch type

Achilles pain

"The tongue of the shoe can initially dig into the ankle during wear."

tongue design

ankle irritation

"The ankle area may be questionable in terms of comfort for those who wear lower socks."

sock height

ankle comfort

"The upper of the shoe lacks sufficient engineering for optimal foot positioning."

upper

design

stability

durability

The main points to note are that the shoe's durability is frequently praised, appearing in 9 out of 10 pros, while concerns about the tread's strength and potential for holes in the toe area are also significant, appearing in 4 out of 5 cons.

tread (2)

build quality (1)

longevity (1)

outsole (1)

rubber (1)

shape retention (1)

weight (1)

toe_area (1)

Pros

"The construction of the shoe is durable, ensuring it withstands wear over time."

durability

long-lasting

"The shoe has durable midsole technology that promises longevity."

nitrogen-infused foam

durable

lasting

"The shoe exhibits excellent durability despite extensive use."

wear

confidence

mileage

"The shoe demonstrates impressive durability, maintaining good condition even after extensive use."

durable

long-lasting

"Durability is notable, with the shoes holding up well even after 6 months of use."

durability

wear-resistance

"The durability of the shoes ensures they maintain performance over time."

durable

wear and tear

long-lasting

"The StealthFit edition showcases a durable outsole suitable for long-term use."

durability

outsole

"The shoe features a durable outsole, making it suitable for extensive use."

durable outsole

Roadtack Rubber

hardness

"The Glycerin 21 maintains good durability thanks to its thick rubber coverage."

durability

rubber

"The shoe retains its good shape and fit even after extensive use."

durability

tread

upper

Cons

"There is a slight increase in weight compared to the previous model."

weight increase

heavier than previous

overall weight

"Less rubber coverage may suggest a compromise in durability, though not confirmed."

reduced outsole

durability concern

coverage loss

"The tread is too weak, raising durability concerns."

weak tread

durability concern

"The tread is thin, leading to worries about its longevity."

thin tread

longevity concern

"The shoes develop holes in the toe area quickly."

holes

durability issue

toe wear

"While the shoe wears well, it still lacks some overall durable feeling during use."

durability

wear

shape

performance
Distance suited: Long (>20km)
Rocker: More rocker

The main concerns about the shoe are its lack of responsiveness and speed, which were mentioned frequently, indicating it may not be the best choice for competitive or faster-paced running.

lightweight (3)

responsiveness (3)

roll (2)

transition (2)

speed (2)

versatility (1)

weight (1)

endurance (1)

Pros

"The shoe provides a light weight despite its high level of cushioning, aiding in performance."

lightweight

quick turnover

"The shoes were lightweight, making them suitable for marathon training."

marathon

training

lightweight

"The shoe features a lightweight design despite its cushioning and support, enhancing overall performance."

lightweight

performance

"The Glycerin 21 is versatile, suitable for long runs and everyday use, making it a great all-around choice."

everyday

long run

versatile

"The Glycerin 21 offers a responsive feel while maintaining comfort, enhancing the overall running experience."

responsive

comfortable

"Responsiveness of the shoes enhances the running experience, allowing for better performance."

performance

response

"There is a significant reduction in weight compared to the regular Glycerin 21."

weight

lightweight

performance

"The shoes have a significant weight reduction compared to the regular version, enhancing their appeal for daily runners."

weight reduction

lightweight

daily running

"The shoe is lightweight, making it easier to run and reducing fatigue."

lightweight

performance

"It is highly effective for long runs due to its comfort and lightweight design."

endurance

long runs

performance

"The Glycerin 21 offers an improved rocker geometry, enhancing comfort and performance."

rocker geometry

comfort

performance

"The midsole of the Glycerin 21 is designed to provide a moderate amount of energy return, making it efficient for running."

energy return

softness

"The shoes allow for a comfortable experience on long runs."

long runs

comfort

"The shoe performs well in a variety of running conditions, instilling confidence for upcoming races."

race preparation

confidence

performance

"The New Balance Fuel Cell Supercomp Trainer V2 had a unique rolling action, enhancing performance."

unique

performance

rolling

"The New Balance Fuel Cell Super Comp Trainer V2 has a unique and enjoyable rolling action."

smooth

transition

"There is a noticeable rocking motion in the shoe that aids in maintaining engagement during runs."

rocking

engagement

"The shoe offers a nice transition for various foot strike patterns."

transition

foot strike

midsole

"The shoe promotes smoother transitions from heel to toe, improving running efficiency."

smoother transitions

running efficiency

performance

"The shoes balance cushioning and responsiveness, allowing for comfortable long runs."

cushioning

responsiveness

long distance

"The shoe is versatile enough for various types of runs."

versatility

stability

speed work

"The shoe performs well for faster runs, holding its own despite varied track conditions."

performance

speed

Cons

"The shoe has a slow turnover speed, making it less ideal for faster paces."

slow

performance

turnover

"The shoe is best for slow and easy runs, which may not satisfy runners looking for versatility."

slow

easy

performance

"The Glycerin 21 lacks the energetic feel found in other max-cushioned competitors."

max-cushioned

competitiveness

energy

"The greater stack height could lessen ground feel, making the shoe feel less connected to the surface."

stack height

ground feel

connection to surface

"Some runners did not feel fast in the shoe, indicating a lack of performance."

performance

speed

"The shoe is not designed for speed work, making it less suitable for competitive runners."

speed work

distance

stability

"The shoe's plushness might not be suitable for longer or more intense runs."

cushioning

performance

intensity

"The midsole's performance is affected in cold conditions, providing a firmer experience."

cold performance

midsole stiffness

"The overall performance is still uncertain after only a few miles run."

performance

mileage

testing

"The shoe is not suitable for racing due to its lack of responsiveness."

racing

responsiveness

"The shoe is not very responsive or snappy during runs, which may be a downside for those seeking faster performance."

responsiveness

performance

"The shoe becomes less responsive over time, particularly after many miles."

nitrogen

mileage

weight

"The shoe's weight may be a drawback for speed work."

heavy

speed work

"The shoes may not be versatile enough for rigorous trail running due to their design."

versatility

trail running

performance

"The shoe may not improve race performance for seasoned runners compared to other options."

seasoned runners

marathons

performance

"The overall performance may not meet expectations when compared to other models."

performance

comparison

price

fit
True to size: Runs small
Toebox width: Narrower
Heel width: Narrower
Orthotic friendly: No

The most common issues with the shoe are that it has a snug fit, particularly in the toe box, which may not be suitable for wider feet, and the laces are of poor quality, leading to potential fraying.

toe box (4)

breathability (3)

secure (3)

sock-like (2)

laces (2)

tongue (2)

width (2)

size (2)

Pros

"The shoe features a wider and more comfortable toe box, enhancing fit."

comfort

fit

"The toe box offers a more voluminous fit, allowing for natural foot splay."

voluminous fit

toe box

natural splay

"The toe box initially felt snug but became more comfortable as running progressed."

fit

comfort

size-recommendation

"The toe box provides ample room, contributing to overall user comfort."

fit

toe room

"The new upper design enhances fit by offering more flexibility and a snug feel."

flexible

supportive

comfortable

"The shoe has a spacious toebox which improves comfort during runs."

toebox

comfortable

"The heel design ensures a secure fit without slippage, enhancing overall stability."

secure fit

no slippage

"The shoe has improved breathability, enhancing overall comfort during runs."

breathable

comfort

"The new warp-knit upper design contributes to breathability and secure fit."

breathable

secure fit

warp-knit upper

"The Fit Knit upper provides a custom-like fit while ensuring breathability during runs."

Fit Knit

custom fit

breathable

"The shoe maintains a classic Brooks fit that is consistent and comfortable."

classic fit

roomy toe box

snug midfoot

"The original Glycerin 21 version has a more accommodating fit, especially in the toebox and midfoot."

toebox

fit

comfort

"The fit of the shoe feels secure without being overly tight."

fit

comfort

secure

"It provides a streamlined, sock-like feel which ensures a secure fit."

sock-like

secure fit

adaptation

"The shoe maintains a secure fit with minimal heel slip, contributing to overall comfort during use."

fit

comfort

secure

"The laces maintain their fit without needing adjustments, providing consistent support."

support

convenience

fit

"The shoe provides good overall support, making it feel secure on the foot."

support

ease

user-friendly

"The self fit upper delivers a sock-like feel, adding to overall comfort and adaptability to the foot shape."

fit

upper

comfort

"The shoe fits well without needing laces, providing a 'sock-like' feel."

fit

no laces

comfort

"The upper material is designed to prevent blisters and offers a comfortable fit."

sock-like

blister prevention

comfortable fit

"The shoe offers a snug and flexible fit due to its adaptable upper design."

fit

flexibility

upper design

"The sock-like design offers a secure fit, enhancing overall comfort."

fit

sock design

"The fit of the Brooks shoe is highly effective, allowing freedom of movement while still being secure."

secure

freedom

"The StealthFit construction provides a snug, supportive fit that feels almost like a second skin."

StealthFit

snug

supportive

"The shoe fit well without feeling overly snug right out of the box."

fit

comfort

break-in

"The shoe offers a snug fit thanks to its mesh upper design."

mesh

fit

comfort

Cons

"The toe-box is somewhat cramped, which may not be suitable for runners with wider feet."

claustrophobic

fit

toe-box

"The laces on the shoe are of poor quality and tend to fray easily."

cheap

fraying

fit

"The laces can be unnecessary, impacting their effectiveness."

lace effectiveness

design

"The upper material caves slightly under pressure on the big toe."

pressure

fit

upper

"The lateral movement of the tongue can be problematic during long periods of walking."

walking

fit

movement

"The shoe lacks a gusseted tongue, which could improve lockdown."

gusseted tongue

lockdown

fit adjustment

"The fit of the shoe is narrower compared to the regular Glycerin model, which could be restrictive for wider feet."

fit

narrow

"The fit is narrower compared to the regular Glycerin model, potentially making it uncomfortable for those who prefer a more spacious shoe."

narrow fit

spaciousness

"The stealth fit version has a snug fit that may feel tight through the midfoot."

snug

tight

fit issues

"The shoe feels tight due to the knit upper."

knit upper

fit

tight

"The toe box may be too small for some runners."

toe box

size

fit

"The fit may be too snug, suggesting a need for a half size larger."

fit

size

"Experiencing a hot spot after a month of running."

hot spot

discomfort

"The split tread design made for an uncomfortable landing sensation."

split tread

landing sensation

"The shoe's upper, while nice, is narrower compared to prior models, which may not suit everyone."

width

fit

upper

"The sock design is not appealing, affecting overall satisfaction."

sock

design

aesthetic

"The tongue of the stealth fit edition is too elastic, leading to heel lift."

heel lift

fit problems

elastic tongue

"The fit in the stealth fit edition is not ideal for performance running."

performance

fit

secure fit

"The original version is preferred for better lockdown compared to the stealth fit edition."

lockdown

performance

fit

"The stealth fit version has a tongue that does not provide adequate support due to its thinness."

tongue

support issues

fit

"The fit may not be very flexible, limiting toe movement."

flexibility

comfort

"The shoe's high stack height may lead to discomfort for experienced runners."

stack height

fit

experienced runners

stability
Stability level: More stable

The main concerns about the shoe's stability are that it lacks a noticeable forefoot rocker and that the stability features are not very effective, both of which were mentioned frequently.

transition (1)

transitions (1)

height (1)

flexibility (1)

heel support (1)

heel counter (1)

midsole width (1)

general (1)

Pros

"The shoe's cushioning provides a very stable and smooth transition, enhancing the running experience."

smooth transition

stability

comfortable

"Transitions between strides are smooth and stable, contributing to an enjoyable running experience."

smooth

stable

"The increased stack height improves stability and cushioning."

increased stack height

stability

cushioned

"Flex grooves in the outsole enhance adaptability to impact stresses."

flex grooves

impact adaptation

outsole design

"The improved heel counter provides better support and stability."

stability

heel counter

"The improved heel counter offers better support and comfort than previous versions."

heel counter

support

comfort

"The shoe has a broader midsole width, providing a stable landing platform for heel strikers."

broader width

landing platform

support

"The shoe is suitable for neutral runners, providing stability without excessive support requirements."

neutral runner

stability

ride quality

"The shoe provides valuable support for alignment during runs, making it suitable for various running styles."

support

alignment

"The wide base provides excellent stability during runs."

wide base

stability

"The GTS version provides a non-intrusive stability experience without feeling overly supportive."

stability

non-intrusive

support

"The Brooks Glycerin 21 offers good stability even though it is not overly cushioned, providing a nice feel underfoot."

stability

cushion

comfort

Cons

"The shoe does not have a prominent forefoot rocker, making it feel flat."

forefoot

flat

transitions

"The stability features like side rails were not noticeable during running."

stability

side rails

performance

"The heel does not provide enough stability for walking comfortably."

walking

comfort

stability

"The heel is described as significantly curved which negatively impacts stability when walking."

walking

stability

design

"The shoe feels more flexible but less stable due to its semi-curved last."

flexibility

stability

design

"The stealth fit version lacks a good lockdown, making it less secure than the original version."

lockdown

security

stability issues

"The heel counter on the stealth fit version is flexible and may not provide adequate support."

heel counter

support

stability

"The drop height may not be suitable for minimalistic runners."

10 mm drop

minimalist

stability

grip

The main points to note are that the grip of the shoe is praised for its excellent performance in various conditions, but there are concerns about its average traction on wet surfaces and insufficient aggressiveness for off-road and slippery terrains.

traction (3)

aggressiveness (2)

wet conditions (1)

coverage (1)

durability (1)

stability (1)

tread (1)

versatility (1)

Pros

"The RoadTack rubber outsole offers excellent grip, making it suitable for a variety of conditions, including wet surfaces."

grip

wet conditions

outsole durability

"The generous outsole coverage contributes to stability while running on uneven surfaces like gravel."

outsole coverage

stability

gravel running

"The outsole has been updated for added grip and durability on various terrains."

RoadTack

grip

durability

"The Brooks Ghost 15 has a highly aggressive tread, beneficial for durability and traction."

aggressive

tread

durability

"The shoe features improved grip compared to previous versions."

grip

outsole

silica

"The Glycerin 20 possesses a good level of rubber coverage on the outsole, ensuring reliable traction."

traction

outsole

reliability

"The redesigned outsole enhances grip, making it reliable on tougher terrains."

outsole design

grip

stability

"The Brooks shoe has an aggressive tread design that enhances grip and stability."

aggressive tread

grip

"The shoes are versatile enough for both road running and trail running."

road

trail

versatile

Cons

"Traction on wet surfaces is average, which could impact safety during rainy runs."

traction

wet

safety

"The tread is not aggressive enough for off-road conditions, leading to slipping concerns."

non-aggressive tread

slipping concern

"The grip is not aggressive enough for slippery or muddy conditions, which may cause slips."

grip

slippery conditions

muddy surfaces

"The tread is not thick or aggressive enough for varied terrains."

tread

off-road

slip risk

other

The main points to note are that many users appreciate the shoe's lightweight design and comfort, while a significant number also mention issues with breathability and limited color options.

lightweight (2)

design (2)

breathability (2)

upgrade (1)

weight (1)

shopping (1)

sustainability (1)

laces (1)

Pros

"The Glycerin 21 is lighter than its predecessor, making it a more appealing choice for runners looking for reduced weight."

lightweight

weight

"The shoe is lightweight for the amount of cushioning it provides."

lightweight

cushion

easy miles

"The shoe is a significant improvement over its predecessor in terms of comfort and performance, making it a preferred choice for running."

improvement

better than predecessor

"The weight of the shoe is relatively light despite the increased midsole stack."

lightweight

high mileage

stack height

"The shoe's colorway and design are visually appealing."

aesthetic

colorway

"The shoe has an appealing aesthetic that enhances the overall running experience."

aesthetics

style

"The stylish design comes in various colors, allowing runners to express their personal style."

stylish

variety

fashionable

"The shoe has a nice aesthetic design with vibrant colors."

aesthetic

color

style

"The shopping experience on Amazon was noted as beneficial, allowing for easy returns and trials."

online shopping

Amazon Prime

easy returns

"The shoes are eco-friendly, incorporating sustainable materials into the design."

eco-friendly

sustainable

environmental impact

"The laces have a good quality feel and add to the visual appeal."

quality

visual appeal

"The shoe's price point is competitive compared to similar models, making it a solid option for buyers."

value

comparative

"The Glycerin 21 gives a satisfying running experience, even if the reviewer prefers the newer model slightly more."

satisfaction

comparison

Cons

"Despite being somewhat lightweight, it is not the lightest running shoe available."

weight

lightweight

"The shoe lacks adequate breathability, which may lead to discomfort during longer runs."

breathability

discomfort

"The shoe lacks adequate breathability, making it less suited for hot summer runs."

ventilation

temperature

comfort

"The shoe is stiffer than some runners might prefer, impacting flexibility during runs."

outsole groove

flexibility

running comfort

"The absence of reflective elements detracts from its safety features, especially for night running."

reflective elements

visibility

"The original version is heavier than the stealth fit, which may deter some runners looking for a lightweight option."

weight

heavy

performance

"The limited color options are a drawback, especially for those who like variety."

color options

style

"The design of the sock was not favorable, affecting aesthetic preference."

sock design

aesthetic concern

"The reviewer expresses excitement about the shoe's look but only mentions the sole without going into detail."

aesthetics

lack of detail

"There is a limited range of color options available for the shoe."

color

variety

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Reviews

Read reviews about the Brooks glycerin stealthfit 21 from across the internet, including reviews from other runners on Fittir, wear testers from google & youtube, and more.

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Wear-tester reviews (25)

4.3/5

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Brooks glycerin stealthfit 21

Brooks glycerin stealthfit 21

Surface

Cushioning

Category

Breathability

Weight

Heel-to-Toe Drop

Support

Width options

Grip

Suitability

Based on your running style and needs

Want to know if the Brooks glycerin stealthfit 21 is right for you?

Pros & Cons

Most Mentioned Pros

Most Mentioned Cons

cushion

Pros

Cons

comfort

Pros

Cons

durability

Pros

Cons

performance

Pros

Cons

fit

Pros

Cons

stability

Pros

Cons

grip

Pros

Cons

other

Pros

Cons

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4.3/5

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Find out if the Brooks glycerin stealthfit 21 is right for you.