Brooks Women’s Glycerin 23 Neutral Running Shoe - vs Under Armour Women's Charged Assert 9, Black/White, 8.5 US
Updated August 2026 — Brooks Women’s Glycerin 23 Neutral Running Shoe - wins on stability and comfort, Under Armour Women's Charged Assert 9, Black/White, 8.5 US wins on breathability.
The Brooks Women’s Glycerin 23 offers superior comfort and performance for serious runners, while the Under Armour Women's Charged Assert 9 is a budget-friendly option for casual use.
Why Brooks Women’s Glycerin 23 Neutral Running Shoe - is better
Cushioning
Glycerin 23 features advanced nitrogen-infused cushioning.
Comfort
Glycerin 23 provides a plush, engineered upper for better fit.
Performance
Glycerin 23 is designed for serious runners and high-mileage comfort.
Why Under Armour Women's Charged Assert 9, Black/White, 8.5 US is better
Price
Charged Assert 9 is significantly cheaper.
Versatility
Charged Assert 9 is suitable for casual wear and light training.
Weight
Charged Assert 9 is lighter due to its mesh upper.
Overall score
Specifications
| Spec | Brooks Women’s Glycerin 23 Neutral Running Shoe - | Under Armour Women's Charged Assert 9, Black/White, 8.5 US |
|---|---|---|
| Sales Rank | 4982 | 2002 |
| Upper Material | Warp-knit | Mesh |
| Midsole | DNA TUNED | Charged |
| Fit | Plush | Soft |
| Target User | Serious Runners | Casual Users |
Dimension comparison
Overview of the Brooks Women’s Glycerin 23 Neutral Running Shoe
The Brooks Women’s Glycerin 23 is priced at $159.99 and is designed for neutral runners who prioritize comfort and performance. With a sales rank of 4982, this shoe aims to deliver a plush cushioning experience, making it suitable for long runs, daily training, and recovery days. Its features include a zonal DNA tuned cushioning system that provides enhanced forefoot comfort and a newly engineered upper that offers a breathable fit. This shoe is a go-to choice for those who value a distraction-free and smooth running experience.
Overview of the Under Armour Women's Charged Assert 9
In contrast, the Under Armour Women's Charged Assert 9 is significantly cheaper at $57.95, making it about 64% less expensive than the Glycerin 23. With a sales rank of 2002, this shoe is designed for a broad range of activities, including light training and everyday wear. Its breathable mesh upper promotes airflow, while the Charged midsole offers a balanced cushioning experience. This model is particularly appealing for newer runners looking for a comfortable and affordable option for their workouts.
Comfort and Fit
The Brooks Women’s Glycerin 23 excels in comfort, featuring a plush, engineered upper that wraps around the foot securely while minimizing pressure points. This shoe boasts an upgraded DNA tuned midsole with additional cushioning for a luxurious feel on every step. In comparison, the Under Armour Women's Charged Assert 9 also provides a comfortable fit, thanks to its foam padding around the ankle and a molded liner. However, while the Charged Assert 9 is designed for a soft step-in feel, it may not match the level of cushioning and support that the Glycerin 23 offers for longer runs.
Cushioning Technology
When it comes to cushioning technology, the Brooks Women’s Glycerin 23 stands out with its nitrogen-infused DNA TUNED midsole, which promises softer landings and more responsive toe-offs. The added 2mm cushioning in the forefoot enhances comfort for longer distances. On the other hand, the Charged Assert 9 utilizes a Charged Cushioning® midsole that provides balanced impact protection. While it effectively delivers a comfortable ride for daily activities, it may not offer the same level of performance or cushioning as the Glycerin 23 for serious runners or those logging higher mileage.
Breathability and Temperature Control
Breathability is a notable feature in both shoes, but they approach it differently. The Brooks Women’s Glycerin 23 features a triple jacquard warp-knit upper that enhances airflow while providing a comfortable fit. This design helps reduce hot spots during extended wear. The Under Armour Women's Charged Assert 9, with its lightweight mesh upper, also promotes airflow, keeping feet cooler during workouts. However, the Glycerin 23’s engineered upper may offer a more secure and adaptive fit, particularly for those engaged in longer runs.
Style and Aesthetics
In terms of style, the Brooks Women’s Glycerin 23 showcases a modern design in a White/Phantom/Cyber Pink colorway, appealing to those who appreciate a sleek and fashionable running shoe. Conversely, the Under Armour Women's Charged Assert 9 is presented in a classic Black/White color combination, which lends itself to versatility in everyday wear. While both shoes have their unique aesthetic appeal, the choice may ultimately depend on personal preference and how one intends to use the shoes.
Versatility for Various Activities
The Brooks Women’s Glycerin 23 is primarily aimed at serious runners and those seeking a shoe for high-mileage comfort. Its features are tailored for long-distance running and daily training, making it a versatile option for dedicated athletes. In contrast, the Under Armour Women's Charged Assert 9 is designed for a broader range of activities, including light training and casual wear. Its lower price point and comfortable construction make it appealing for new runners or individuals looking for an everyday shoe rather than a performance-focused running shoe.
Which should you buy?
Your choice between the Brooks Women’s Glycerin 23 and the Under Armour Women's Charged Assert 9 should depend on your specific needs. If you are a serious runner seeking premium comfort and are willing to invest in a high-performance shoe, the Glycerin 23 is likely the better option at $159.99. However, if you're looking for a budget-friendly, versatile shoe for casual use or light workouts, the Charged Assert 9, priced at $57.95, provides excellent value. Ultimately, consider your running habits, comfort preferences, and budget when making your decision.

