ALTRA Women's Escalante 4 Road Running Shoe, vs Under Armour Women's Charged Assert 9, Black/White, 8.5 US
Updated August 2026 — Under Armour Women's Charged Assert 9, Black/White, 8.5 US leads on breathability and flexibility.
The ALTRA Women's Escalante 4 excels in comfort and foot health, while the Under Armour Women's Charged Assert 9 offers better breathability and value.
Why ALTRA Women's Escalante 4 Road Running Shoe, is better
Comfort
ALTRA has unique Altra EGO midsole foam.
Foot Health
ALTRA received APMA Seal of Acceptance.
Flexibility
ALTRA's InnerFlex midsole enhances movement.
Why Under Armour Women's Charged Assert 9, Black/White, 8.5 US is better
Price
Under Armour is 47% cheaper.
Breathability
Under Armour features a lightweight mesh upper.
Sales Rank
Under Armour ranks higher at 2002.
Overall score
Specifications
| Spec | ALTRA Women's Escalante 4 Road Running Shoe, | Under Armour Women's Charged Assert 9, Black/White, 8.5 US |
|---|---|---|
| Brand | ALTRA | Under Armour |
| Current Price | $108.40 | $57.95 |
| Sales Rank | 10519 | 2002 |
| Midsole Type | Altra EGO | Charged |
| Weight | Lightweight | Lightweight |
Dimension comparison
Overview of the ALTRA Women's Escalante 4 and Under Armour Women's Charged Assert 9
The ALTRA Women's Escalante 4 is priced at $108.40, while the Under Armour Women's Charged Assert 9 costs $57.95, making the latter about 47% cheaper. Both shoes cater to female runners, but they emphasize different features that might attract various preferences. The ALTRA shoe is designed for comfort and foot health, as indicated by its APMA Seal of Acceptance, while the Under Armour option focuses on breathability and supportive technology for newer runners.
Comfort and Fit
When it comes to comfort, the ALTRA Women's Escalante 4 stands out with its unique Altra EGO midsole foam, which aims to connect the wearer with the ground while providing a comfortable experience. This shoe also features an InnerFlex midsole designed for flexibility and movement. On the other hand, the Under Armour Women's Charged Assert 9 offers a plush step-in feel due to its foam padding around the ankle and a molded liner that ensures a comfortable fit without the need for a break-in period. Both shoes emphasize comfort, but the ALTRA may appeal more to those looking for a natural feel, while the Under Armour excels in ease of wear.
Breathability and Temperature Control
Breathability is a crucial factor for many runners, and the Under Armour Women's Charged Assert 9 highlights its lightweight mesh upper that promotes airflow, keeping feet cooler during runs and workouts. This feature is particularly beneficial for warm-weather activities. The ALTRA Women's Escalante 4 does not specifically mention breathability as a feature; however, its design focuses on comfort and foot health, which may indirectly contribute to a pleasant running experience. If air circulation is a priority, the Under Armour option may have the edge.
Cushioning and Impact Protection
The ALTRA Women's Escalante 4 utilizes Altra EGO midsole foam to provide a comfortable running experience, while the Under Armour Women's Charged Assert 9 features a Charged midsole that offers balanced impact protection. This cushioning is particularly designed for smoother steps, making it suitable for newer runners who prioritize comfort. While both shoes offer cushioning, the Under Armour's Charged midsole specifically emphasizes impact protection, which may be more appealing for runners looking for enhanced shock absorption during training.
Stability and Support
For stability, the Under Armour Women's Charged Assert 9 comes equipped with reinforced overlays that help keep the foot centered during runs. This feature enhances confidence for light training or longer walks, making it a solid choice for those who may need extra support. In contrast, the ALTRA Women's Escalante 4 emphasizes flexibility with its InnerFlex midsole design, which may benefit those who prefer a more natural foot movement. Ultimately, the Under Armour shoe may be better suited for individuals seeking additional support.
Weight and Flexibility
The ALTRA Women's Escalante 4 focuses on connection to the ground, which often translates to a lightweight feel. However, specific weight details aren't provided for either shoe. The Under Armour Women's Charged Assert 9 boasts a lightweight design combined with a rubber outsole that offers a flexible tread pattern, enhancing natural movement. This flexibility can be beneficial for both casual runs and workouts. If weight and flexibility are high on your list, the Under Armour option might be more appealing.
Sales Rank and Popularity
Popularity can often indicate quality and customer satisfaction, and both shoes rank well on sales charts. The ALTRA Women's Escalante 4 has a bestseller rank of 10,519, whereas the Under Armour Women's Charged Assert 9 is significantly higher at 2,002. This higher rank suggests that the Under Armour model is more popular among consumers, potentially reflecting a greater level of satisfaction and demand. If sales rank influences your decision, the Under Armour shoe may be the more advisable choice.
Price Comparison
There's a significant price difference between the two shoes, with the ALTRA Women's Escalante 4 retailing for $108.40 and the Under Armour Women's Charged Assert 9 priced at $57.95. This means the Under Armour option is about 47% cheaper than the ALTRA model. For budget-conscious runners or those who may be new to running and not ready to invest heavily, the Under Armour offers an attractive value proposition without sacrificing essential features.
Which should you buy?
In deciding between the ALTRA Women's Escalante 4 and the Under Armour Women's Charged Assert 9, consider your specific needs as a runner. If comfort and foot health are your top priorities, the ALTRA's unique features and APMA Seal of Acceptance make it a compelling option. However, if you're seeking a more budget-friendly shoe with strong breathability, impact protection, and support, the Under Armour shoe presents a fantastic value at nearly half the price. Ultimately, your choice should align with your running style and preferences.

