Brooks Women’s Glycerin 21 Neutral Running Shoe - vs Nike Women's Run Defy Road Running Shoes,
Updated August 2026 — Brooks Women’s Glycerin 21 Neutral Running Shoe - wins on cushioning and fit, Nike Women's Run Defy Road Running Shoes, wins on breathability and traction.
The Brooks Women’s Glycerin 21 excels in comfort and support, while the Nike Women’s Run Defy offers great value and breathability. For serious runners, the Brooks is the better choice.
Why Brooks Women’s Glycerin 21 Neutral Running Shoe - is better
Comfort
Brooks offers superior cushioning with nitrogen-infused DNA Loft v3.
Support
Brooks provides neutral support ideal for various activities.
Fit
Brooks features a plush internal stretch bootie for a better fit.
Why Nike Women's Run Defy Road Running Shoes, is better
Price
Nike is significantly cheaper at $65.00.
Traction
Nike has increased rubber at the outsole for better grip.
Breathability
Nike's mesh upper enhances airflow during runs.
Overall score
Specifications
| Spec | Brooks Women’s Glycerin 21 Neutral Running Shoe - | Nike Women's Run Defy Road Running Shoes, |
|---|---|---|
| Cushioning | Nitrogen-infused DNA Loft v3 | Foam midsole |
| Upper Material | Warp knit | Mesh |
| Outsole | Broad platform | Waffle outsole |
| Weight | Lightweight | Moderate |
| Versatility | High | Moderate |
Dimension comparison
Price Comparison
The Brooks Women’s Glycerin 21 retails for $114.95, while the Nike Women’s Run Defy Road Running Shoes are priced at $65.00. This makes the Nike option about 43% cheaper than the Brooks shoe. If you are budget-conscious, the Nike shoes provide a significant cost advantage, making them a great choice for runners looking for good value without sacrificing quality.
Comfort and Cushioning
When it comes to comfort, the Brooks Women’s Glycerin 21 excels with its super-soft nitrogen-infused DNA Loft v3 cushioning. This design ensures a plush feel, ideal for those seeking maximum comfort during long runs. The Glycerin 21 has been recognized with the APMA Seal of Acceptance, indicating its superior cushioning and support. On the other hand, the Nike Women’s Run Defy features a foam midsole that delivers a soft ride, but it may not match the level of plushness offered by the Brooks shoe. Therefore, if supreme softness is a priority, the Brooks is the clear winner.
Support and Fit
The Brooks Women’s Glycerin 21 provides neutral support, making it perfect for various activities, including road running and cross-training. Its internal stretch bootie and newly engineered warp knit upper offer a breathable and flexible fit, adapting to your foot's movements. Conversely, the Nike Women’s Run Defy focuses on breathability with its mesh upper but does not emphasize additional support features like the Glycerin 21. Runners needing extra support may find the Brooks shoe better suited for their needs.
Breathability
In terms of breathability, both shoes offer features that cater to airflow. The Nike Women’s Run Defy has a mesh upper designed to enhance breathability, which is crucial for warm weather runs. The Brooks Women’s Glycerin 21 also incorporates a breathable upper but focuses more on providing a plush experience. While both options allow for some airflow, the Nike shoe may have a slight edge for those prioritizing cooling during their runs.
Durability
Durability is essential for any running shoe, and both the Brooks Women’s Glycerin 21 and Nike Women’s Run Defy have features that contribute to their longevity. The Glycerin 21’s construction, designed for softness and responsiveness, aims to provide lasting comfort over time. Meanwhile, the Nike Women’s Run Defy includes a waffle outsole made of flexible materials that enhance durability and traction. Both shoes appear to have strong durability features, but the Brooks may offer a more long-lasting comfort experience.
Traction
When discussing traction, the Nike Women’s Run Defy shines with its increased rubber at the outsole, which enhances grip and stability during runs. This feature is particularly beneficial for runners who often tackle varied terrains. The Brooks Women’s Glycerin 21 focuses more on promoting smooth transitions rather than explicitly mentioning traction features. Therefore, if your running style requires superior grip, the Nike option may be more advantageous.
Performance in Various Activities
The Brooks Women’s Glycerin 21 is tailored for road running, cross-training, and gym workouts, providing a versatile option for active individuals. Its supreme softness and neutral support make it an excellent choice for various running styles. Meanwhile, the Nike Women’s Run Defy is also suitable for road running but is more focused on delivering a soft ride and cushioning effect. If you seek a shoe adaptable to multiple activities, the Brooks Glycerin 21 might serve you better due to its versatile design.
Which should you buy?
Deciding between the Brooks Women’s Glycerin 21 and the Nike Women’s Run Defy ultimately depends on your specific needs and budget. The Brooks Glycerin 21 offers superior comfort, cushioning, and support, making it ideal for serious runners who prioritize these features and are willing to invest a bit more, at $114.95. On the contrary, the Nike Women’s Run Defy provides excellent value at $65.00, focusing on breathability and traction while being significantly more affordable. If you are looking for a budget-friendly option that still delivers good performance, the Nike might be the better choice. However, if you want the best in comfort and support, the Brooks Glycerin 21 stands out as the clear winner.

