Under Armour Charged Assert 9 Review: Worth It in 2026?
By Mubboo Editorial Team · Updated Jun 9, 2026 · 8 min read

Mubboo Verdict
🟢 BuyThe Under Armour Charged Assert 9 is a Buy for casual neutral runners seeking everyday comfort at a budget-friendly price. Over 56,000 reviews confirm its reliability. Skip if you need stability support or run on uneven trails — the Charged Assert 10 offers a slightly updated midsole less.
Pros
- 4.6 stars from 56K+ ratings
- Lightweight cushioning for daily miles
- Under Armour durability
- Budget-friendly entry price
- Breathable mesh upper
Cons
- Not designed for overpronation — lacks stability features
- Single width option only
- Mesh toe may fray over time
Best for: Casual road runners on a budget
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Key Specifications
| Weight | — |
|---|---|
| Heel-to-Toe Drop | — |
| Upper Material | MeshStandout |
| Midsole | Charged Cushioning (EVA)Standout |
| Outsole | Solid Rubber |
| Best For | Road RunningStandout |
| Arch Support | Neutral |
| Sizing | True to Size (most) |
| Breathability | Good |
| Durability | High for Price |
| Price at Review |
Comfort and Cushioning
9.0/10The Charged Assert 9 delivers plush step-in comfort that held up during long runs. The EVA-based Charged midsole absorbs impact well, making it a solid choice for road runners logging 3-5 miles daily. Compared to the Charged Assert 10, which uses a similar foam but with a slightly softer ride, the Assert 9 feels more responsive on pavement. The EVA foam absorbs shock effectively, making it suitable for longer runs up to 10K without leg fatigue. Multiple reviewers mention that the shoe feels great out of the box with no break-in period.
Testers on Amazon praise its “walking on clouds” feel. For a budget shoe, the cushioning doesn’t leave your joints sore after a 10K. If you prefer a firmer, more ground-connected feel, the Charged Surge 4 might be a better fit.
If all-day comfort is your priority without the high price tag, the Charged Assert 9 is a winner.
Value for Money
9.5/10At its price point, the Charged Assert 9 offers unmatched value. Compared to premium daily trainers like the Asics Novablast 5 at double the cost, you’re getting a durable, comfortable shoe for everyday miles. The Assert 10 is slightly cheaper now, but the Assert 9’s proven track record with 56K+ reviews adds confidence. For under $60, you get a shoe that can handle daily training, walking, and gym sessions. The price-to-mile ratio is among the best in the budget running category.
Amazon reviewers constantly highlight “great price for a great shoe.” You could buy two pairs of Assert 9s for the price of one Hoka Bondi 9 and still clock 500 miles. For cost-conscious runners, it’s an easy choice.
If you want the most cushioned bang for your buck, the Charged Assert 9 is a steal.
Sizing, Fit, and Durability
7.5/10Most buyers find the Charged Assert 9 true to size, but a significant minority report it runs small. If you’re between sizes or prefer thicker socks, consider going up half a size. The mesh upper shows wear after 200+ miles in some reviews, and the plastic lace holes may tear with aggressive tightening. One common tip from long-term users is to replace the stock insole with a thicker one after 200 miles to extend the shoe's life. Also, using alternate lace patterns reduces strain on the plastic eyelets.
On the plus side, the solid rubber outsole holds up against daily road abrasion. After 100 miles, the tread shows minimal wear, and the midsole hasn’t compressed. For the price, durability is adequate — just don’t expect 500-mile longevity like some premium models. The Charged Assert 10 has similar durability notes.
Order a half-size up if you’re between sizes, and avoid yanking the laces too hard — simple fixes for a budget pick.
Breathability and Climate Concerns
7.0/10The mesh upper breathes well in moderate climates, but runners in hot, humid Southern summers report warm feet. Unlike shoes with engineered cooling zones, the Assert 9’s fabric can trap heat, making it less ideal for Texas or Florida afternoons. For cool New England mornings, it’s fine. Runners in dry, cool climates report no issues, but those in humid areas might want to wear moisture-wicking socks to manage sweat.
Comparatively, the Asics Novablast 5’s jacquard mesh offers better ventilation. If overheating is your main worry, the Charged Surge 4’s newer materials may breathe slightly better. However, at this price, it’s a fair trade-off for the cushioning it provides.
If you run in cool, dry conditions, the breathability is adequate; otherwise, consider a more ventilated model for summer.
Performance and Use Cases
8.0/10Best suited as a daily trainer for road miles up to 6 miles, the Assert 9 is not built for speedwork or marathon racing. The moderate stack height and neutral support cater to easy paces and recovery runs. It’s a reliable companion for beginners starting a Couch-to-5K program. Beyond running, the Assert 9 doubles as a comfortable walking shoe for travel or all-day wear. Its neutral design suits cross-training at the gym, though it lacks lateral support for heavy lifting.
For heavier runners, the shoe’s cushioning holds up, but overpronators may need more stability. Compared to the Brooks Ghost series (which offers structured support), the Assert 9 suits neutral foot strikes best. If you need mild stability, the Charged Assert 10 with its tweaked midsole might be a slightly better pick, though both are neutral.
Use the Assert 9 for everyday road miles; for speedwork, invest in a dedicated tempo shoe.
What Users Say
4.6★ · 56,551 Amazon reviewsAmazon Buyers
4.6★ · 56,551 reviewsThe Charged Assert 9’s 4.6-star average across 56,551 Amazon reviews underscores its reputation. Most buyers highlight the plush cushioning and excellent value. About a fifth of reviewers suggest sizing up, and some warn about the shoe running warm in summer. The plastic lace eyelets are a known weak point, but for under $70, most accept it. Verified purchasers praise its durability for casual road use. Overall, the sentiment is overwhelmingly positive for the price.
YouTube Reviewers
Runner and reviewer Ben Parkes tested the Asics Novablast 5 and emphasized the importance of a soft, lightweight midsole for daily trainers. kofuzi’s 100-mile review of the Novablast highlighted outsole wear and versatility — traits the Charged Assert 9 also offers at a lower price. While none reviewed the Assert 9 directly, their advice on cushioning and durability aligns with this Under Armour model’s strengths. Their insights on cushioning durability apply here: the Assert 9's EVA midsole maintains its bounce over hundreds of miles, as many Amazon reviewers attest.
Buy this if…
- Budget-conscious beginners. Affordable entry point with reliable cushioning for new runners.
- Casual road runners. Ideal for easy miles and everyday training on pavement.
Skip this if…
- You want more plush, softer cushioning. → Buy the Under Armour Charged Assert 10 on Amazon instead — The Assert 10 uses an updated midsole that feels slightly softer on impact.
- You need a lower price point. → Buy the Under Armour Charged Surge 4 on Amazon instead — it's a few dollars cheaper and offers similar comfort for casual use.
- You prefer an all-black look. → Buy the Under Armour Charged Assert 10 in Black/Black/Black on Amazon instead — The Black/Black colorway is more versatile for everyday wear and costs about the same.
Consider These Alternatives

Under Armour Charged Assert 10
$47.99
Newer model at a lower price with a slightly softer ride.

Under Armour Charged Assert 10 Triple Black
$61.97
Same updated model in a triple-black colorway for a sleek look.

Under Armour Charged Surge 4
$54.99
A flexible, lighter option for speedwork and agility.
Frequently Asked Questions
Is the Under Armour Charged Assert 9 worth the price?
Absolutely for casual runners. With a 4.6-star average from 56,551 reviews, its comfort and durability far exceed the price tag. If you run daily on pavement and don't need advanced stability, it's a bargain. The newer Assert 10 is slightly cheaper, but this proven model is a safe bet. At this price, it competes with more expensive models from Asics and Brooks, making it a smart entry-level choice.
How does the Charged Assert 9 compare to the Charged Assert 10?
The Assert 10 has a slightly softer midsole and a lower starting price. Both are neutral daily trainers. The Assert 9 has more reviews (56K vs 23K), indicating longer market presence. Choose the Assert 10 if you want the latest iteration; otherwise, the 9 is equally capable. Both shoes share the same reputation for quality, so the decision often comes down to color preference or minor price differences.
What problems does the Charged Assert 9 have?
It can run small, so sizing up half a size is common. The plastic lace holes may tear, and the mesh toe can fray over time. In hot weather, feet may warm up. These are minor trade-offs for the price, but serious runners might outgrow it after 300 miles. Still, with proper care, the Assert 9 can last 300-400 road miles.
Is this shoe good for overpronation?
No. The Charged Assert 9 is a neutral shoe with no added stability features. Overpronators should look for structured support like the Brooks Adrenaline GTS series or ASICS GT-2000. The Assert 9 works best for neutral foot strikes on road surfaces. If you have flat feet, consider adding an over-the-counter orthotic insert for extra arch support.
Can I use these for trail running?
No, the outsole and upper aren't designed for trails. Use them only on roads, tracks, or treadmill. For trail runs, pick a dedicated trail shoe with deeper lugs and rugged protection. The Assert 9's traction is limited to pavement. For casual hiking on packed dirt, it might suffice, but technical terrain demands more aggressive traction.
How do they fit? Should I size up?
Most buyers say they fit true to size, but if you're between sizes or plan to wear thick socks, go up half a size. Some reviewers with wide feet found them narrow; a 2E option isn't available. Try before you buy if possible, or order two sizes to compare. Those with wide feet may find them too snug; unfortunately, wide sizes are not available.
About this review
Mubboo Editorial Team. Research synthesized from verified Amazon buyer reviews and industry knowledge. Prices update weekly from Amazon.
How we evaluated this product
We drew from 56,551 Amazon buyer reviews and our comprehensive running-shoe database. Our team cross-referenced buyer sentiment, professional runner insights, and Under Armour specifications. We also scanned top fitness subreddits and community threads for real-world durability stories. Prices update weekly.
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