Brooks glycerin gts 21

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

Brooks glycerin gts 21

Price

339

Rating

High

Popularity

Moderate

The Brooks Glycerin GTS 21 is a high-cushion stability running shoe that combines the plush feel of the Glycerin series with supportive features from the Brooks GuideRails system, positioned as a top choice for runners seeking comfort and support in the Brooks lineup alongside other models like the Adrenaline GTS.

6 colorways

Colorway: COCONUT/FORGED IRON/YELLOW

Widths available: normal

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Summary

The Brooks Glycerin GTS 21 is a stability running shoe designed for runners who need extra support without sacrificing cushioning. It integrates GuideRails technology to control excessive movement and maintain a natural motion path, making it ideal for those with overpronation issues. Positioned within Brooks's lineup, it pairs the soft and plush cushioning of the Glycerin series with the stability features of the GTS models. This shoe provides a luxurious underfoot feel with optimal support, distinguishing itself from neutral models like the Ghost or the more minimalistic offerings such as the Launch.

Surface

road

Cushioning

MinLowMediumHighMax(31mm)

Breathability

LowMediumHigh(air mesh upper)

Weight

286g

Heel-to-Toe Drop

10mm0mm14mm

Support

NeutralLightHigh

Width options

normal, wide

Grip

LowMediumHighMax

Suitability

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Pros & Cons

AI-powered

Fittir conducts a detailed analysis of the Brooks glycerin gts 21 to provide you with a comprehensive overview of the shoes features, pros, and cons based on 27 wear-tester reviews.

Summary: The Brooks Glycerin GTS 21 is highly regarded for its exceptional comfort, plush cushioning, and moderate stability, making it an excellent choice for daily training and long-distance runs, particularly for neutral runners and those needing mild support. However, it is noted for its lack of responsiveness and breathability, which may limit its appeal for faster-paced runs and more dynamic experiences..

Most Mentioned Pros

Most Mentioned Cons

cushion
Cushion feeling: Firm

The main points to note are that over 25% of the pros highlight the shoe's exceptional cushioning and comfort, while more than 25% of the cons mention that the cushioning can feel firmer than expected and may not suit all runners.

softness (4)

firmness (4)

cushioning (3)

stack height (2)

responsiveness (2)

midsole (2)

plushness (1)

comfort (1)

Pros

"The Glycerin 21 features a 2 mm extra stack height for a noticeably softer ride compared to previous models."

plush ride

stack height

cushioning increase

"The added stack height increases the cushioning effect of the shoe."

cushion

stack height

"The increased stack height provides additional cushioning."

stack height

cushioning

improvement

"The Glycerin 21 features supremely soft cushioning for a comfortable running experience."

cushioning

comfort

soft

"The cushioning is soft yet not overly squishy, offering good support without being too plush."

soft

supportive

cushioning

"The Glycerin GTS21 has a surprisingly soft ride due to its unique midsole."

midsole

soft ride

DNA loft

"The Gel-Kayano 31 is noted to be softer and more responsive compared to its predecessor, the Gel-Kayano 30."

cushion

responsiveness

"The addition of two millimeters of DNA Loft v3 foam enhances the plush ride."

DNA Loft v3

extra foam

midsole

"The Glycerin 21 offers a luxurious, soft step-in feel with bounce back for responsiveness."

bounce back

luxury

comfort

"The cushioning is balanced with a spring effect for a smoother ride."

spring

smooth

comfort

"The Brooks Glycerin 21 offers enhanced cushioning with the new DNA Loft v3."

DNA Loft v3

extra cushioning

comfortable ride

"The Glycerin 21 features improved cushioning with an additional 2mm of nitrogen-infused DNA LOFT v3."

nitrogen-infused

plush

DNA LOFT

"The updated foam provides more cushioning while maintaining responsiveness."

DNA Loft

max cushioning

"The Brooks Glycerin GTS 21 provides great cushioning, ideal for long runs."

cushioning

support

"The shoe has a well-cushioned and comfortable ride."

cushioned

smooth ride

premium

"DNA Loft version 3 foam offers a cushy running experience."

DNA Loft

cushion

nitrogen infused

"The shoe features ample cushioning with the DNA Loft v3 for a comfortable ride."

DNA Loft v3

cushioning

softness

"The shoe offers excellent cushioning due to the nitrogen infused DNA Loft V3 midsole foam."

cushioning

DNA Loft V3

softness

"The midsole's nitrogen-infused DNA LOFT v3 material offers a light and airy ride that feels dynamic."

lightweight

dynamic

midsole

"The shoe is well-cushioned, which enhances the overall comfort during runs."

cushioning

overall comfort

"The cushioning breaks in well after initial firmness, providing a comfortable ride."

cushioning

comfort

nitrogen infused

"The nitrogen injected sole provides lightweight cushioning for a comfortable run."

nitrogen

cushioning

weight

"The shoe provides increased cushioning with the additional 2 mm stack height."

cushioning

stack height

DNA Loft version 3

"The DNA Loft version 3 foam enhances the ride quality compared to previous models."

energy return

ride quality

nitrogen infused

"The shoe maintains a firm ride, which is preferred by some runners looking for stability."

ride feel

stability

"The Glycerin GTS22 has a firmer ride, which may appeal to runners who found the GTS21 too soft."

firmer ride

GTS22

"The ASICS Gel-Kayano 31 delivers a bouncier feeling, which adds to the overall comfort during runs."

bounce

comfort

Cons

"Compared to other max-cushioned trainers, the ride is firmer and less soft than expected."

cushioned

max-cushioned

firm

"The shoe does not feel as squishy and soft compared to other models, which may not appeal to all runners."

cushioning

softness

feel

"The shoe's foam is not as soft as marketed, falling short of expectations."

cushion

foam

softness

"The shoe may be too soft for some runners."

cushioning

comfort

"The cushioning may feel overly soft for some runners, suggesting a lack of firmness."

softness

comfort

"The cushioning, while soft, remains relatively firm compared to other high cushion shoes, which may not suit all runners."

cushioning

firmness

"The shoe's cushioning feels somewhat firm when running despite being marketed as soft."

firm cushioning

running feel

softness

performance

"The cushioning of the Glycerin GTS 21 feels firmer than that of the Keano 30."

cushioning

firmness

"The DNA loft in Glycerin GTS22 is firmer, which might not suit those who prefer a softer ride."

firm ride

less cushion

"The substantial difference in foam softness in cold temperatures could affect overall performance in colder climates."

cold weather

performance

cushioning

"There is a noticeable lack of zip and bounce in the midsole."

soft

lack of energy return

"The shoe feels a bit firm despite being a max cushion model."

nitrogen infused

max cushion

responsiveness

"The shoe feels bland due to its cushioning setup."

non-responsive

uninspiring experience

"The stack height is lower compared to newer stability trainers."

low cushioning

comparative analysis

"The increased stack height might be unsuitable for some runners."

stack height

cushioning

"The cushioning doesn't feel as comfortable or responsive as previous versions, leading to disappointment."

cushioning

comparison

disappointment

"The midsole cushioning variation makes it hard to depend on for every run."

cushion

dependability

comfort
Breathability: Less breathable

The main points to note are that comfort is frequently highlighted as a strong positive feature of the shoes, while issues with breathability and stiffness are common concerns.

overall (3)

upper (3)

breathability (3)

flexibility (2)

softness (2)

comfort features (1)

materials (1)

initial comfort (1)

Pros

"The cushy heel collar and padded tongue contribute to the overall comfort of the shoe."

padded tongue

cushy heel

comfort

"The shoe is extremely comfortable for both running and casual wear."

casual wear

daily use

comfortable

"The combination of features offers a cohesive comfortable and supportive experience."

supportive

comfortable

cohesive

"The Brooks Glycerin GTS 21 is extremely comfortable with its soft midsole foam."

comfort

shoe

Glycerin GTS 21

"The materials used in the shoe are deluxe and provide a plush feel."

plush materials

well padded

"This shoe provides exceptional comfort right out of the box, requiring minimal break-in time."

minimal break-in

out of the box comfort

easy fit

"The shoe is praised for its comfort during runs, providing good support without slippage at the heel."

supportive

comfortable

no slippage

"The upper is noted for its comfort, providing a plush feel."

upper material

comfort

"The engineered warp knit upper enhances overall comfort and fit."

warp knit

comfort

fit

"The breathable mesh upper increases comfort and ventilation."

breathability

mesh materials

"The ASICS Gel-Kayano 31 features a revamped upper that significantly improves comfort and fit."

comfort

fit

upper

"The shoe has improved breathability compared to its predecessor, enhancing comfort during runs."

breathable

comfortable

improved

"The design of the upper enhances breathability."

upper design

breathable

plush

"The shoe offers a slight flexibility which can improve comfort for those who dislike stiff shoes."

flexibility

comfort

"The shoe offers flexibility from heel to toe for a smooth stride."

flexible

smooth stride

"The Brooks Glycerin 21 maintains excellent comfort for long-distance running."

comfort

cushioning

long-distance

"The engineered mesh upper is soft and comfortable right out of the box, adding to the overall comfort of the shoe."

mesh

comfort

breathability

"The neutral version offers a comfortable fit for runners needing less support."

comfort

neutral

everyday

"The shoes have a soft lining which enhances comfort around the heel and tongue."

soft lining

heel comfort

tongue comfort

"The shoe provides good lockdown, contributing to overall comfort during runs."

secure fit

comfort

"Both shoes are highly rated for being comfortable right out of the box, with no issues reported."

initial comfort

fit

Cons

"The new upper design makes the shoe feel overly warm during runs."

heat

padding

upper

comfort

"The dense upper material does not provide ample airflow, affecting breathability."

breathability

upper material

"The shoe has insufficient breathability in warmer conditions."

breathability

tongue padding

"While comfortable, the Glycerin 21 lacks a firmer feel that some runners prefer."

plush

comfort

"The gel Koo 31 might be too soft for some runners."

comfort

softness

"The shoe may not be suitable for overpronators, limiting its audience."

neutral

overpronation

audience

"The knit upper lacks sufficient ventilation, causing it to run warm."

breathability

heat

upper material

"The rearfoot may be overly stiff for some runners."

stiffness

rearfoot

"The heel counter is extremely stiff, which may cause discomfort for those with heel sensitivities."

stiffness

heel

comfort

"The sock liner is described as mediocre and does not meet the expectations for a shoe priced at $160."

sock liner

support

price

"The heel counter is stiff, which may not work for everyone and could be uncomfortable over time."

heel comfort

stiffness

padding durability

"The shoe feels a little firm initially, which can be uncomfortable for a new pair."

initial feel

firmness

comfort

"Despite being a comfortable shoe, the overall ride quality is not as good as expected, affecting long run comfort."

ride quality

comfort

performance

"The firmer upper of Glycerin GTS22 requires a longer break-in period to achieve comfort."

break-in period

comfort adjustment

"The glycerin GTS 21 feels firmer compared to previous versions."

comfort

responsiveness

durability

The main concerns about the shoe's durability are the potential for the outsole to wear out quickly and the foam breaking down faster than expected, which were mentioned frequently.

outsole (3)

long-lasting (2)

construction quality (1)

material (1)

weight (1)

longevity (1)

resilience (1)

reliability (1)

Pros

"The construction of the Glycerin 21 is durable and can withstand extensive use without significant wear."

durability

long-lasting

quality build

"The DNA Loft v3 foam is lighter and provides better durability than traditional EVA foams."

DNA Loft v3

lightweight

durability

"The Glycerin 21 remains lightweight despite its added cushioning and support."

lightweight

support

foam

"The shoe is surprisingly lightweight despite its larger appearance."

lightweight

performance

"The shoe is lightweight, making it ideal for long periods of use."

weight

lightweight

long usage

"The shoe maintains durability with quality midsole technology that lasts over time."

durability

midsole technology

long mileage

"The durability of the shoe is expected to be above average, lasting longer than many competitors."

durable

above average

miles

"The shoe provides a soft yet firm feel, promoting longevity and stability."

firm

long-lasting

high cushion

"The outsole is highly durable, ensuring longevity in the shoe."

outsole

durability

"The RoadTack outsole promises good durability for long-lasting performance."

durability

RoadTack

performance

"The outsole is designed for durability and lightweight performance."

outsole

dual formed

lightweight

"The ASICS Gel-Kayano 31 is durable with minimal wear after extended use, indicating great longevity."

durability

outsole

"The outsole durability of both models is rated as phenomenal, making them reliable for long distances."

outsole

durability

Cons

"The outsole has less coverage compared to the previous model which may impact durability."

outsole

coverage

durability

"There are concerns about the foam breaking down quicker compared to other models, which may affect longevity."

durability

wear

"The outsole coverage under the toe is decreased, raising concerns about durability."

outsole

durability

premature wear

"There is concern over the longevity of the shoe due to the thin carbon-rubber outsole that shows wear fast."

outsole

wear

"The dual formed rubber outsole might wear out quicker under intense usage."

durability

outsole

heel strike

"The flex groove under the toe may be a warning for premature wear patterns for some runners."

flex groove

premature wear

durability

"The weight of the shoe might be a concern for competitive runners."

weight

durability

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

The main points to note are that many users appreciate the shoe's smooth transition during runs, but a significant number also feel it lacks responsiveness and energy, especially for faster paces.

responsiveness (5)

speed (4)

weight (3)

transition (1)

energy retention (1)

lightweight (1)

versatility (1)

target audience (1)

Pros

"The shoe offers a smooth transition between strides."

smoothness

efficiency

"The shoe transitions well thanks to a well-rounded heel and decent bevel."

heel transition

bevel

performance

"The shoe provides a super smooth transition during runs."

smooth

transition

running experience

"The design improvements in the outsole allow for better heel-to-toe transition."

outsole

performance

transition

"The midsole technology provides good energy retention and a smoother transition."

smoother transition

responsive

energy efficiency

"The Glycerin 21 has a lightweight feel which aids in comfort and responsiveness during runs."

responsive

comfortable

fast turnover

"The Glycerin 21 serves as a versatile shoe suitable for various types of runs."

everyday

long runs

responsive

"Both shoes are effective for long runs and recovery runs, making them versatile in a runner's rotation."

performance

long runs

recovery runs

"The shoe is designed to be responsive thanks to its supercritical foam."

foam

performance

"The shoe provides a firm yet responsive ride."

response

performance

"The shoe's characteristics make it an excellent choice for average-to-heavy-weight runners."

average-weight

heavy-weight

performance

"The shoe reduces stress through improved stride mechanics, which can prevent injuries."

smooth stride

stress reduction

"These shoes are versatile for a variety of workout types."

versatile

workouts

endurance

"The Glycerin GTS21 was initially surprising with its performance and became a favorite for the reviewer."

performance

GTS21

Cons

"The Glycerin 21 lacks the energy and liveliness that some runners seek in a max-cushioned trainer."

ride

liveliness

max-cushioned

"Some reviewers find the Glycerin 21 too soft for their preference and lack responsiveness."

softness

responsiveness

"The shoe's design may not appeal to those looking for a more responsive training option."

softness

preference

"Although the ride is stable, it lacks responsiveness and quickness."

slow

stability

"The Glycerin GTS 21 lacks the responsiveness of previous models and other brands."

responsiveness

comparison

disappointment

"The glycerin GTS 21 lacks responsiveness and pop during runs."

performance

lack of pop

"The shoe's plush cushioning may hinder faster running performance for some."

cushioning

slow

"The shoe does not perform well at faster paces."

pace

speed performance

versatility

"The shoe may not perform well during speed-focused runs."

performance

speed

"The shoe is not suitable for faster runs as it lacks speed."

speed

performance

running

"The shoe's turnover is slow, which may hinder speed during runs."

speed

run dynamics

"The Glycerin 21 GTS lacks excitement in its ride."

lack of bounce

uninspiring

daily trainer

"The shoe feels heavier and less responsive compared to earlier models, which may affect performance negatively."

heaviness

weight

performance

"The Glycerin GTS22 is noticeably heavier than its predecessor."

heaviness

weight increase

"The gel Koo 31 feels heavier than desirable for speed work."

performance

weight

"The Glycerin GTS 21 offers less flexibility in the forefoot compared to the Keano 30."

flexibility

forefoot

"The Glycerin GTS 21 takes longer to transition due to its stiffness."

transition

stiffness

"Both shoes have limited versatility and performance capability."

performance

versatility

fit
True to size: True to size
Toebox width: Wider
Heel width: Average
Orthotic friendly: No

The most common issues with the shoe are that the toe box can feel confining and it may not fit well for runners with narrow or wider feet, which could lead to discomfort during runs.

width (4)

toe box (3)

breathability (1)

fit consistency (1)

toebox (1)

space (1)

size (1)

adaptability (1)

Pros

"The shoe includes a wider toe box which enhances overall comfort during runs."

wider fit

comfort

spacious

"The new warp knit upper allows for a more voluminous fit in the toe box, enhancing comfort."

warp knit upper

roomy fit

natural splay

"Both shoes offer excellent fit and enough room in the toe box for comfort."

fit

toe box

comfort

"The new warp-knit upper provides breathability and structure for a snug fit."

warp-knit

breathable

secure fit

"The upper material is noted for being breathable and adding to the overall comfort."

breathable

comfortable

material

"The upper features engineered warp mesh for optimal support and breathability."

upper

mesh

support

"Reviewers appreciated the consistent fit across different foot shapes."

fit

foot shape

comfort

"There is a notable improvement in the spaciousness and comfort of the toebox compared to previous models."

spacious

comfortable

accommodating

"The shoe features a roomy toebox which enhances fit and comfort."

toebox

fit

"The fit of the shoe is conducive to various foot shapes due to its slightly wider design."

wide

toe box

fit

"The shoe fits wider than previous versions, allowing for better toe movement."

wide fit

toe space

"The Brooks Glycerin 21 is said to fit well and even feels wider, enhancing comfort during runs."

comfort

fit assessment

wider option

"Brooks offers width options for better fit and comfort for different foot shapes."

fit options

inclusivity

"Glycerin GTS21 features a wide forefoot that allows for toe spreading, providing comfort for fleet"

wide forefoot

toe room

"The shoe fits true to size, providing a secure and comfortable fit."

true to size

fit

comfort

"The upper part of the shoe adapts well to the foot, securing it comfortably."

secure

adaptive

fit

"The updated upper design provides a better fit for a variety of foot shapes."

upper design

fit variety

"The shoe fits well lengthwise and is generally accommodating in width."

fit

accommodating

"It has a highly breathable and flexible upper that maintains comfort."

breathability

flexibility

fit

"The shoe provides a secure heel fit due to added stitching around the heel."

customized

stitching

secure

"The padded tongue and stretchy laces contribute to a locked-in feel."

tongue

laces

comfort

"There is ample room in the toe box, allowing for good toe splay."

fit

toe box

comfort

"The mesh material adds flexibility and accommodates different foot shapes with width options."

mesh

fit

width options

"The upper of the Glycerin GTS22 provides a secure fit, enhancing overall foot lockdown."

mesh upper

foot lockdown

Cons

"The toe-box feels somewhat confining, leading to potential discomfort during runs."

comfort

size

"The shoe lacks a gusseted tongue which can affect lockdown."

gusseted

tongue

lockdown

"The tongue tends to lean laterally over time when walking, although it's not an issue during running."

design

walking

"The shoe could be lighter, indicating it is on the heavier side."

weight

heaviness

comfort

"Runners with normal width feet may experience foot sliding unless the laces are secured tightly."

fit

lace

sliding

"The shoe may require a lace lock to prevent slipping, indicating potential fit issues."

fit

lace

sliding

"The drop in design may not suit everyone's preferences."

motion issues

personal preference

"For those with narrow feet, the shoe may not provide the desired fit."

fit

narrow foot

"The most recent model feels narrower than previous versions."

narrow

previous version

size adjustment

"The shoe might not cater to runners with wider feet due to the engineered warp mesh."

fit

warp mesh

"The width options may still not accommodate all foot types."

fit

narrow

width

"There's a concern about the breathability of the upper since the tongue is not gusted."

tongue design

locking mechanism

upper material

"The shoe may feel short due to a slight taper at the toe box."

toe box

fit length

short feel

"The Glycerin GTS 21 has a narrower toe box compared to the Keano 30."

toe box

narrow

"The toe box fit, while good, may not suit everyone perfectly."

fit

toe box

"The heel slippage issue may pose a problem for runners with narrower feet."

heel fit

slippage

narrow fit

"Despite claims, no significant difference in the medial width was felt."

no improvement

medial width

comparison

"The upper material may lack structure for some users."

fit

flexibility

"The 10 mm heel-to-toe drop might not suit runners who prefer lower drops."

heel-to-toe drop

personal preference

fit

"The laces are round and not the preferred style for secure lockdown, which could affect fit during runs."

laces

fit

preference

"The Glycerin GTS 21 has a less secure midfoot fit compared to the Keano 30."

midfoot

security

"The upper of Glycerin GTS22 may not provide enough volume for some runners."

low volume

toe pressure

stability
Stability level: More stable

The most common points from the pros and cons indicate that while the shoe offers excellent stability and support, some users may find it too rigid or lacking in flexibility.

support (2)

transitions (1)

ride (1)

platform stability (1)

flexibility (1)

Guiderails (1)

heel support (1)

heel transition (1)

Pros

"Smooth and stable transitions make the shoe effective for slow-paced running."

stability

smooth transitions

suitable for slow runs

"The shoe provides excellent support for neutral runners without excessive bounce."

support

neutral runners

cushion

"The shoe offers moderate stability without excessive weight."

stability

lightweight

"It provides a stable rearfoot and midfoot for better support during runs."

stable

supportive

rearfoot

midfoot

"The shoe has a stable base, enhancing safety and performance for runners who need that support."

stability

supportive

performance

"Brooks' guide rail system provides excellent midfoot support and stability."

guide rail system

midfoot support

"The incorporation of the guide rail system offers additional support."

support

guide rails

"The Glycerin GTS 21 features stability technologies that help maintain proper body mechanics."

stability

guide rails

support

"The guide rails offer excellent support for over-pronators."

guide rails

over-pronation

"The ASICS Gel-Kayano 31 and Brooks Glycerin GTS 21 both provide effective stability for mild to moderate pronators."

stability

mild

moderate

"The shoe has a very stable ride, making it suitable for easy and slow runs."

stability

easy runs

slow pace

"With a broader platform and increased stack height, the shoe enhances stability during runs."

wider platform

increased stack height

stable running

"This shoe allows for great flexibility, enhancing the overall running experience."

flexible

responsive

comfortable

"Guiderails provide excellent stability support throughout the run."

stability

support

Guiderails

"The heel counter's high quality provides added stability and support during running."

heel support

stability

quality

"The new beveled heel provides a smoother transition when landing on the rear foot."

beveled heel

smooth transition

"The updated design allows for more stability without compromising comfort."

stability

design

"The GTS version includes a guide rail system for support."

guide rails

support

alignment

"The guide rails help keep the ankle, knee, and hip aligned for better movement."

alignment

support

movement

"The shoe maintains a strong lock down in the midfoot area, which enhances stability during runs."

stability

lock down

fit

"The guide rails provide effective stability without harshness, allowing for a smooth run."

stability

support

safety

"The GTS 21 version includes supportive features for stability during runs."

stability

supportive rails

guiding

"The shoe's lateral bevel creates a smooth transition during runs."

lateral bevel

smooth transition

"The Glycerin GTS22 offers a more stable ride compared to its predecessor."

stability

ride

"Both shoes feature wide bases, which enhances stability during runs."

stability

base

Cons

"The shoe does not transition well for runners seeking a smooth ride due to the lack of a prominent forefoot rocker."

rocker

forefoot

transition

"Despite its stability claims, some runners may find that it does not provide the additional stability needed during runs."

stability

side rails

performance

"Some runners might prefer more flexibility in the forefoot than what this shoe offers."

flexibility

forefoot

stability

"The heel stability is lacking when walking, making it less comfortable for that activity."

stability

walking comfort

"The shoe feels less stable due to its semi-curved design, impacting overall stability."

instability

design

"The stability features may be insufficient for runners highly sensitive to arch support."

arch support

stability features

comparative performance

"The heel-to-toe drop of 10 mm may feel awkward for some runners."

heel-to-toe drop

10 mm

running feel

"The shoe's structure may not cater to runners with specific pronation needs."

pronation issues

guide rails

neutral runners

"Some runners might find the stability features excessive."

stability

injury prevention

"The guide rail system may feel too rigid for some users."

guide rail

stability

"The heel and midfoot of the Glycerin GTS 21 feel notably stiff."

heel

midfoot

stiffness

"The stability in Glycerin GTS22 may be overbearing for some runners."

overstability

grip

Please provide the cons for the shoe grip so I can complete the analysis.

traction (2)

performance (1)

outsole (1)

outsole_material (1)

Pros

"The RoadTack outsole adds grip and durability for varying surfaces and weather conditions."

outsole

durability

grip

"The RoadTack rubber outsole provides excellent grip in wet and slippery conditions."

grip

wet conditions

durability

"The shoe adapts well for use in wet conditions, maintaining good traction."

wet conditions

road traction

"The shoe's outsole provides excellent traction on various surfaces including frosty and icy conditions."

outsole performance

traction

weather conditions

"The large amount of rubber coverage on the outsole offers good grip on various surfaces."

grip

durability

road

Cons

other

The main points to note are that the shoe is often mentioned as being heavy, which is a concern for many users, and the laces are frequently criticized for their quality.

weight (3)

design (2)

lightweight (1)

flexibility (1)

aesthetics (1)

sustainability (1)

value (1)

quality (1)

Pros

"The shoe is lighter than its predecessor, contributing to a more manageable overall weight for runners."

lightweight

decreased weight

performance

"It is fairly lightweight considering the level of cushioning it offers."

lightweight

cushioned training

"The outsole features flex grooves that enhance adaptability to various surface impacts."

flex grooves

impact adaptation

outsole design

"The shoe's design is visually appealing with an attractive look and variety of color options available."

attractive

variety

colorways

"The Brooks Glycerin 21 features improved aesthetics with better design and colorways."

aesthetics

colorways

design improvement

"The Brooks Glycerin 21 has a visually appealing color scheme."

visual

color

"The Glycerin GTS 21 is partially made of recycled materials, making it an eco-friendly option."

eco-friendly

recycled materials

sustainability

"The ASICS Gel-Kayano 31 is a better value overall, offering more durability and comfort for the price."

value

price

durability

Cons

"The laces used in the Glycerin 21 feel cheap and have a tendency to fray easily."

laces

durability

quality

"The shoe is fairly heavy compared to other options in its category."

weight

lightweight

"The increased stack height results in a higher overall weight for the shoe."

weight

stack height

material

"The shoe may feel too heavy compared to its previous iteration."

weight

heaviness

"The shoe's weight may feel excessive for some runners."

heavy

performance preference

"The Glycerin GTS 21 lacks reflective elements, which could hinder visibility in low-light conditions."

safety

reflective details

"The price point of the shoe is noted as high, especially considering some of its shortcomings."

price

value

"There's concern about the breathability of the upper material as temperatures rise, which could lead to discomfort."

breathability

temperature

concern

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Reviews

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Wear-tester reviews (27)

4.4/5

Prices

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Brooks glycerin gts 21

Brooks glycerin gts 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 gts 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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Older Models

Newer Models

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4.4/5

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