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The Brooks Glycerin 21 is a running shoe designed to provide maximum cushioning and comfort for long-distance runners. This shoe is known for its plush ride and supportive design, making it a popular choice among those who prioritize comfort over speed.
Key Features:
The Brooks Glycerin 21 is an ideal choice for runners who prioritize cushioning and comfort for long-distance runs. Its plush midsole offers excellent shock absorption, making it suitable for marathon training and daily running.
With an average review score of 82%, it's rated just above the median rating of similar running shoes. Based on our monitoring of prices across the internet, it's currently in the most expensive 40% of running shoes today.
The Brooks Glycerin 21 is widely regarded as a comfortable and cushioned running shoe, ideal for long-distance and recovery runs. Its DNA Loft v3 midsole provides a plush ride, although some runners find it less responsive compared to other maximalist shoes. The shoe's warp-knit upper offers a snug fit but may feel warm in hot conditions. The RoadTack outsole is durable, providing good traction on roads, though it may wear faster than previous models. While the Glycerin 21 excels in comfort, it lacks the energy return and speed of some competitors, making it less suitable for fast-paced runs. Overall, the Glycerin 21 is a solid choice for those seeking a stable and cushioned shoe for easy-paced runs. It is best suited for runners who value comfort and durability over speed.
The Brooks Glycerin 21 introduces several updates from its predecessor, the Brooks Glycerin 20. The most notable change is the addition of 2 mm of DNA Loft v3 foam in the midsole, providing a softer and more cushioned ride. The shoe also features a new warp-knit upper, offering a snug fit with improved flexibility and breathability. The outsole has been redesigned with RoadTack rubber, enhancing durability and grip on road surfaces. These updates make the Glycerin 21 a more comfortable and stable option for long-distance runners.
The Saucony Triumph 21 is a good alternative for runners seeking a highly cushioned shoe. It offers a plush ride similar to the Glycerin 21 but with a slightly softer feel. The Triumph 21's PWRRUN+ midsole provides excellent energy return, making it more responsive for faster runs. While both shoes excel in comfort, the Triumph 21 may be better suited for those who prioritize a bouncier ride.
The ASICS GEL-Nimbus 26 is another competitor in the maximalist cushioning category. It features ASICS' GEL technology for shock absorption and a FlyteFoam midsole for a soft ride. The Nimbus 26 offers a similar level of comfort to the Glycerin 21 but with a different feel due to its unique cushioning system. Runners who prefer a more traditional cushioning experience may find the Nimbus 26 appealing.
The New Balance Fresh FoamX 1080 v13 is a popular choice for those seeking a cushioned and comfortable ride. It features Fresh FoamX technology, providing a soft and supportive platform. The 1080 v13 is known for its smooth transitions and lightweight feel, making it a versatile option for various running distances. Compared to the Glycerin 21, the 1080 v13 may offer a more responsive ride for those who enjoy a bit more energy return.
The Brooks Glycerin StealthFit 21 offers a unique fit and feel compared to the standard Glycerin 21. It features a one-piece, flat-knit upper that provides a more streamlined and snug fit, enhancing the shoe's overall comfort and support. The StealthFit version maintains the same DNA Loft v3 midsole, ensuring a plush ride, but with a different upper construction that may appeal to runners seeking a more adaptive fit. This version is ideal for those who prefer a sleeker design without compromising on cushioning.
The Brooks Glycerin GTS 21 is designed for runners who need additional support and stability. It incorporates Brooks' GuideRails technology, which helps keep the foot aligned and reduces excess movement. This version is suitable for runners with mild overpronation, offering the same plush cushioning as the standard Glycerin 21 but with added support features. The GTS 21 is a great option for those who want a cushioned ride with enhanced stability for a more controlled running experience.
The upper of the Brooks Glycerin 21 features a warp-knit design that provides a snug and comfortable fit. This material is known for its flexibility and breathability, although some runners find it less ventilated than traditional mesh. The knit upper stretches to accommodate different foot shapes, offering a secure fit without causing hot spots or discomfort. However, the thicker knit can make the shoe feel warm, especially in hot weather, which may not be ideal for those running in warmer climates.
The midsole of the Brooks Glycerin 21 is constructed with DNA Loft v3 foam, a nitrogen-infused material that offers a plush and cushioned ride. This foam is designed to be lightweight and durable, providing excellent shock absorption for long-distance runs. The midsole's softness makes it ideal for easy-paced runs, but it may lack the responsiveness needed for faster workouts. The 10 mm heel-to-toe drop supports a smooth transition from heel to toe, catering to heel strikers.
The Brooks Glycerin 21 features a RoadTack outsole, known for its durability and grip on road surfaces. The outsole is segmented, allowing for flexibility and a smoother ride. While the rubber lugs provide adequate traction, they are not overly aggressive, making them suitable for road running but less effective on trails. The outsole's design contributes to the shoe's overall stability, although some runners have noted that it may wear down faster than previous models.
The Brooks Glycerin 21 offers a true-to-size fit with a medium toe box that accommodates most foot shapes. The shoe is available in both standard and wide widths, ensuring a comfortable fit for a variety of runners. The warp-knit upper provides a snug fit, while the padded tongue and heel collar enhance comfort. Some runners have noted that the shoe feels slightly shorter than average, so trying on a pair before purchasing is recommended.
Comfort is a standout feature of the Brooks Glycerin 21, thanks to its plush DNA Loft v3 midsole and cushioned interior. The shoe provides a soft and supportive ride, ideal for long-distance runs and recovery days. The padded tongue and heel collar add to the overall comfort, while the warp-knit upper offers a snug fit without causing irritation. However, the shoe's warmth may be a drawback for those running in hot climates.
The Brooks Glycerin 21 is designed with maximum cushioning in mind, featuring a DNA Loft v3 midsole that provides a soft and plush ride. This cushioning is ideal for long-distance runs, offering excellent shock absorption and comfort. The shoe's 10 mm heel-to-toe drop supports a smooth transition, making it suitable for heel strikers. While the cushioning is luxurious, some runners may find it lacks the responsiveness needed for faster-paced runs.
The breathability of the Brooks Glycerin 21 is somewhat limited due to its warp-knit upper. While the material offers a snug and comfortable fit, it may not provide the ventilation needed for hot weather running. Runners in warmer climates may find the shoe feels warm, which could lead to discomfort during long runs. However, the knit upper does offer some flexibility and stretch, accommodating different foot shapes.
The Brooks Glycerin 21 offers a stable ride, thanks to its wide base and supportive midsole. The shoe's DNA Loft v3 foam provides a cushioned platform that absorbs shock and reduces impact, making it suitable for long-distance runs. While the shoe is not specifically designed as a stability shoe, its lateral side rails and firm heel counter offer additional support for neutral runners. The shoe's stability is enhanced by its segmented outsole, which allows for smooth transitions.
Durability is a strong point for the Brooks Glycerin 21, with its RoadTack outsole providing long-lasting grip and wear resistance. The DNA Loft v3 midsole is designed to maintain its cushioning properties over time, ensuring a consistent ride. However, some runners have noted that the outsole may wear down faster than previous models, particularly in the forefoot area. Despite this, the shoe's overall construction is robust, making it a reliable choice for high-mileage runners.
The grip of the Brooks Glycerin 21 is provided by its RoadTack outsole, which offers reliable traction on road surfaces. The rubber lugs are designed to provide a secure grip, although they are not overly aggressive, making them less suitable for off-road conditions. The outsole's segmented design allows for flexibility and smooth transitions, enhancing the shoe's overall performance on paved surfaces. While the grip is adequate for road running, it may not be sufficient for more technical terrain.
The Brooks Glycerin 21 offers moderate flexibility, thanks to its segmented outsole and warp-knit upper. The shoe's design allows for smooth transitions and a natural running feel, although it may not be as flexible as some other models in its category. The DNA Loft v3 midsole provides a cushioned ride, but its plushness can limit the shoe's overall flexibility. Runners seeking a more flexible shoe may find the Glycerin 21 slightly stiff, particularly in the forefoot area.
The Brooks Glycerin 21 is an excellent choice for runners who prioritize comfort and cushioning in their footwear. It is particularly well-suited for those who engage in daily running or long-distance training, such as marathons or half-marathons. Runners with a neutral pronation and a preference for a heel strike will find this shoe supportive and stable. Its plush midsole and durable outsole make it a reliable option for those seeking a comfortable and long-lasting running shoe.
The Brooks Glycerin 21 may not be the best choice for runners who prefer a highly responsive and energetic shoe. Those who run in hot or humid climates might find the shoe's knit upper too warm, leading to discomfort during long runs. If breathability is a priority, consider alternatives like the Hoka Mach 6. Additionally, runners seeking a lightweight shoe for speedwork or racing may find the Glycerin 21 too heavy and cushioned for their needs. For those requiring more stability, the Brooks Adrenaline 23 could be a better fit.
The Brooks Glycerin 21 is well-suited for long-distance running and recovery runs, offering a plush and cushioned ride that absorbs impact and reduces fatigue. Its DNA Loft v3 midsole provides a soft platform, making it ideal for road running and everyday training. The shoe's stability and support make it a reliable choice for marathon training and easy-paced runs, ensuring comfort over extended distances.
Yes, the Brooks Glycerin 21 is an excellent choice for marathon training due to its plush cushioning and supportive design. The DNA Loft v3 midsole provides a comfortable ride, making it ideal for long-distance runs.
The Brooks Glycerin 21 offers a true-to-size fit with a medium toe box. It is available in both standard and wide widths, accommodating various foot shapes. Some runners find it slightly shorter than average, so trying on a pair is recommended.
The Brooks Glycerin 21 has a heel-to-toe drop of 10 mm, which supports a smooth transition from heel to toe, making it suitable for heel strikers.
The Brooks Glycerin 21 features a warp-knit upper that provides a snug fit but may not offer the best ventilation. Runners in hot climates might find the shoe warm during long runs.
While the Brooks Glycerin 21 is designed for comfort and cushioning, it may not be the best choice for speedwork due to its plush midsole and heavier weight. Runners seeking a more responsive shoe for fast-paced runs might consider other options.
Now viewing Brooks Glycerin 21 | ||||||
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bestDeal | Show prices | |||||
priceBand | Price band | |||||
similarity | Similarity | Very similar | Very similar | Very similar | Very similar | Very similar |
released | ReleasedNov 2023 | Dec 2020 | Feb 2023 | Nov 2023 | ||
expertReviewScore | Expert Review Score | | | | | |
Weight | WeightM: 278 g W: 249 g | M: 258 g W: 227 g | M: 283 g W: 264 g | 283 g | M: 303 g W: 261 g | |
Forefoot | Forefoot28 mm | 28 mm | 31 mm | 34 mm | ||
Heel to toe drop | Heel to toe drop10 mm | 10 mm | 10 mm | 10 mm | 9 mm | 8 mm |
Heel | Heel38 mm | 39 mm | 38 mm | 40 mm | 42 mm | |
Brand | BrandBrooks | adidas | Brooks | Brooks | Nike | ASICS |
Strike Type | Strike TypeHeel strike | Fore/Midfoot strikeHeel strike | Fore/Midfoot strikeHeel strike | Heel strike | Fore/Midfoot strikeHeel strike | Fore/Midfoot strikeHeel strike |
Breathable | Breathable | |||||
Rocker | Rocker | |||||
Carbon fiber plate | Carbon fiber plate | |||||
Techs | Techs | adidas Ultraboost | Brooks BioMoGo DNA | ASICS GelOrthoLite | ||
Environmental Characteristics | Environmental CharacteristicsVegan Ⓥ | SustainableVegan Ⓥ | Sustainable | |||
Common characteristicsRoadDaily runningNeutralNeutral pronationHigh archComfortableMaximalistOrthotic friendlyRemovable insole |
Characteristics | |
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Sports | Running (+2046) |
Terrain | Road (+1361) |
Usages | Daily running (+1131) |
Brand | Brooks (+94) |
Support Type | Neutral (+1598) |
Pronation Type | Neutral pronation (+1574) |
Strike Type | Heel strike (+1098) |
Arch Type | High arch (+1521) |
Shoe Type | Comfortable (+238)Maximalist (+432) |
Fit | Medium toe box (+851) |
Features | Orthotic friendly (+452)Removable insole (+435) |
Materials | Knit (+210) |
Events | 10k (+715)5K and 10K (+135)Half marathon (+715)Marathon (+715)Obstacle course racing (+168) |
Environmental Characteristics | Vegan Ⓥ (+250) |
Colorways | Black / Black / Ebony, Black / Grey / White, Blue / Icy Pink / Rose, Blue / Nightlife / Black, Blue Opal / Black / Nasturtium, Chestnut, Cloud / Black / Pink, Coconut / Aqua / Autumn Sunset, Delicacy / Ice Pink / Prism, Ebony |
Specifications | vs Average | |
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Model | 21 | |
Released | Nov 2023 | |
Measurements | ||
Heel to toe drop | 10 mm | |
Heel | 38 mm | |
Weight | M: 278 g W: 249 g | |
Forefoot | 28 mm |