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ASICS Women's Gel-Nimbus 28 Running Shoes, 8.5, vs Under Armour Women's Charged Assert 9, Black/White, 8.5 US

Updated August 2026 — ASICS Women's Gel-Nimbus 28 Running Shoes, 8.5, wins on comfort and cushioning, Under Armour Women's Charged Assert 9, Black/White, 8.5 US wins on traction and breathability.

The ASICS Women's Gel-Nimbus 28 excels in advanced cushioning and breathability, while the Under Armour Women's Charged Assert 9 offers great value and support for casual runners.

Why ASICS Women's Gel-Nimbus 28 Running Shoes, 8.5, is better

Price

ASICS offers superior technology at a higher price.

Cushioning

ASICS features advanced PureGEL and FF BLAST PLUS cushioning.

Breathability

ASICS has an engineered knit upper for enhanced airflow.

Why Under Armour Women's Charged Assert 9, Black/White, 8.5 US is better

Affordability

Under Armour is significantly cheaper.

Stability

Under Armour provides reinforced overlays for better support.

Traction

Under Armour has a flexible tread pattern for better grip.

Overall score

ASICS Women's Gel-Nimbus 28 Running Shoes, 8.5,
85
Under Armour Women's Charged Assert 9, Black/White, 8.5 US
70

Specifications

SpecASICS Women's Gel-Nimbus 28 Running Shoes, 8.5,Under Armour Women's Charged Assert 9, Black/White, 8.5 US
BrandASICSUnder Armour
ModelGel-Nimbus 28Charged Assert 9
WeightLightweightLightweight
UpperEngineered KnitMesh
MidsoleFF BLAST PLUSCharged Cushioning

Dimension comparison

ASICS Women's Gel-Nimbus 28 Running Shoes, 8.5,Under Armour Women's Charged Assert 9, Black/White, 8.5 US

Price Comparison

When it comes to price, the Under Armour Women's Charged Assert 9 is significantly more affordable at $57.95, making it about 66% cheaper than the ASICS Women's Gel-Nimbus 28, which retails for $169.95. This drastic price difference positions the Under Armour model as an attractive option for budget-conscious consumers or those just starting their running journey. However, with the ASICS model's advanced features and technology, it appeals to more experienced runners seeking optimal performance.

Design and Aesthetics

In terms of design, the ASICS Women's Gel-Nimbus 28 features a sleek, engineered knit upper in a Mineral Beige/Cream colorway, providing a modern look while promoting breathability. Meanwhile, the Under Armour Women's Charged Assert 9 offers a classic Black/White design that is versatile and can complement various outfits. Both shoes prioritize comfort and style, but the ASICS model employs a more sophisticated upper construction that enhances breathability and reduces the need for overlays, potentially giving it a stylistic edge for fashion-forward runners.

Comfort and Cushioning

Comfort levels are a crucial factor in running shoes, and here, the ASICS Women's Gel-Nimbus 28 excels with its PureGEL technology and FF BLAST PLUS cushioning. This combination provides a softer landing and a responsive ride, making long-distance runs feel smoother. In contrast, the Under Armour Women's Charged Assert 9 features a Charged midsole that delivers a balanced impact protection, which is especially beneficial for newer runners. While both shoes offer excellent cushioning, the ASICS model's technology may be better suited for serious runners looking for that extra level of comfort on extensive runs.

Breathability and Fit

Breathability is another vital aspect of running shoes, and the Under Armour Women's Charged Assert 9 has a lightweight mesh upper that enhances airflow, keeping your feet cooler during activities. The ASICS Women's Gel-Nimbus 28 also prioritizes breathability with its engineered knit upper, designed to wrap the foot comfortably. However, the Under Armour model's mesh design may provide a slight edge in warm-weather conditions. Both shoes offer a secure fit, but the ASICS model includes an OrthoLite X-55 sockliner that adds to the overall moisture management, enhancing comfort during extended wear.

Stability and Support

When assessing stability and support, the Under Armour Women's Charged Assert 9 stands out with its reinforced overlays that help keep the foot centered during activities. This feature is particularly beneficial for those engaging in light training or longer walks. On the other hand, the ASICS Women's Gel-Nimbus 28 provides a snug fit with its durable polyester lining and insole but does not emphasize midfoot support as much as its competitor. For runners who prioritize stability, the Under Armour model may be the better choice, especially for beginners who need that added support.

Traction and Outsole Performance

In terms of traction, the Under Armour Women's Charged Assert 9 boasts a rubber outsole with a flexible tread pattern, which is designed to enhance grip on various surfaces, making it ideal for pavement and treadmill runs. While the ASICS Women's Gel-Nimbus 28 also features a synthetic rubber outsole, its primary focus is on cushioning and comfort rather than aggressive traction. Thus, for those who often run on diverse surfaces, the Under Armour model offers a slight advantage in terms of outsole performance and flexibility.

Bestselling Status and Market Position

The Under Armour Women's Charged Assert 9 is currently ranked 2002 in sales, indicating its popularity among consumers. In contrast, the ASICS Women's Gel-Nimbus 28 has a higher sales rank of 11265, suggesting it appeals to a more niche market focused on advanced running technology. This discrepancy may reflect the different target audiences; while the ASICS model targets dedicated runners seeking premium features, the Under Armour model caters to a broader range of users, including casual runners and fitness enthusiasts.

Which should you buy?

Choosing between the ASICS Women's Gel-Nimbus 28 and the Under Armour Women's Charged Assert 9 ultimately depends on your running needs and budget. If you prioritize advanced cushioning, breathability, and a lightweight design for serious running, the ASICS is worth the investment at $169.95. However, if you're seeking a budget-friendly option that offers solid comfort and support for casual running or walking, the Under Armour model at $57.95 provides excellent value. Both shoes have their unique strengths, so consider your specific requirements before making a decision.