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adidas Women's Ultraboost 21 Running Shoe

  • Based on 4,504 reviews
Condition: New
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Availability: Only 2 left in stock, order soon!
Fulfilled by SCK Shoes

Arrives Sep 25 – Oct 2
Order within 4 hours and 57 minutes
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Color: Black/Black/Grey


Size: 8


Description

These women's Ultraboost shoes are designed to give runners the comfort and responsiveness they need. An adidas Primeknit upper is stretchy and has a sock-like fit. A Linear Energy Push system increases forefoot and midfoot stiffness. The S-curve heel eliminates slip, and the signature Boost cushioning returns energy to your stride.

Department ‏ : ‎ womens


Date First Available ‏ : ‎ April 29, 2025


Best Sellers Rank: #226,656 in Clothing, Shoes & Jewelry (See Top 100 in Clothing, Shoes & Jewelry) #505 in Women's Road Running Shoes


#505 in Women's Road Running Shoes:


Customer Reviews: 4.5 4.5 out of 5 stars 4,504 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sep 25 – Oct 2

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Surprisingly sturdy but well cushioned lightweight walking shoe
Color: Mgh Solid Grey/Silver Metallic/Light Size: 6.5
I waited almost 5 months to review these Addidas Ultraboost running shoes. I walk an average of 9 miles a day and I’ve been looking for a comfortable walking shoe which lasts long and doesn’t leave my feet or hips or legs fatigued and these really live up to the hype. Even though these shoes have a very light fabric upper, they are shockingly long lasting and resilient. Other lightweight shoes I’ve purchased have often come apart within 3 months of purchase, either the soles giving out or the fabric breaking at my big toes. So far, these have held up perfectly. Also, they are washable. I wash them by hand in water with regular laundry detergent, but they perk right up after washing and look as good as new. I’m very impressed by the quality of these shoes and how good my legs feel after 8-10 miles per day. Highly recommended. ... show more
Reviewed in the United States on September 7, 2025 by Eva-Marie Leahey Eva-Marie Leahey

  • 2 years later and these are still my favorite shoes!
Wow I bought these Dec 2022 and these babies have been THRU it. They’ve been washed in the washer, pressure washed & handwashed/soaked many times and they’ve held up great! The weight of them are a little denser but I love how comfortable they are! The white color has held up great but after 2 years the soles are starting to wear off the white paint. I am going to buy them again this time in black and white again because they held up so good with washing. I believe they are a bit expensive HOWEVER they are worth it. I could probably go another year with them but I’ll donate them to less fortunate so they can still get more great use out of them. ... show more
Reviewed in the United States on January 13, 2025 by Nilla Skin Nilla Skin

  • Comfy cloud!
These shoes look good but also feel great on. I walk a lot for work and the shoes offered great support and comfort.
Reviewed in the United States on February 3, 2025 by Bethany Horner

  • Adidas Ultraboost 21 running shoes- BEST ULTRABOOSTS YET!
Ok, I’ve been wearing Adidas Ultraboosts for a few years now. Every season I buy at least 2-3 pair bc last year I had trouble finding more before the 21’s came out and kind of panicked (it brought flashbacks of when my fave Salomon running shoes were discontinued… I still get twitchy about that). I realllllllly like the 21’s (3 pair so far; all black, pink and light blue, and I’m going to buy another couple pairs of black bc I mostly wear black, AND bc most of the colors this season are really light with a white sole - I run and walk five dogs outside, and I’m just really active inc many treadmill miles every day, and the pink pair was trashed after just two wears, unfortunately). The shoe feels and fits more like a really snug sock, and it’s super comfortable. What I really like about them are the soles. They are much wider and feel a lot more sure footed when running. Still super lightweight, but something about the new sole and snugger sock-like fit makes them SO MUCH BETTER. I highly recommend. Thanks, Adidas, for making such a kickass, reasonably priced shoe. You have a customer for life if you never stop making Ultraboosts. ... show more
Reviewed in the United States on June 8, 2021 by MistressOfTheCastle

  • Comfort and support
These adidas are very comfortable and the support is excellent. I have a high arch and they are snug around whole foot. The only thing about the sneaker that took me a little time to get use to was sliding them on, the ankle support is tight but once I broke them in it was fine.
Reviewed in the United States on April 15, 2024 by Mary Grimes

  • Pretty good
Color: Black/Black/Black Size: 10
Takes some time to adjust lol but definitely good comfort I work at an airport and stand on my feet all day , my heels were killing me for sure this took away all the sharp pains for sure just make sure to not wear any thick socks in this shoe for they have a good form for sure but they can be tight and order half size up for sure ... show more
Reviewed in the United States on May 15, 2023 by Sumaira K.

  • Allowed my feet to heal
First off, I am not a sneaker person except when running. But I developed foot problems, and mg doc said I had to get a GOOD pair of sneakers with a somewhat solid (not super flexible) sole. And wear them all the time. I was to be barefoot never. I got these and a pair of NB’s. Just a few weeks later I went to Disney world and walked 16+ miles a day. I alternated days but the days I wore these were much better than the NB’s. I’ve been wearing them for 6 months now, and they’re still extremely comfortable. They breathe really well. I can feel a little breeze in my toes when wearing light socks. They’re squishy but supportive. I’m now doing so much better in big part to these shoes! FYI, I have a high arch, plantar fasciitis, and a heel spur, and these are great for all three. ... show more
Reviewed in the United States on March 22, 2022 by Stephanie S.

  • Supportive and narrow-feet-friendly
Color: Crew Navy/Halo Blue/Pulse Yellow Size: 10
It's tough to find comfortable sneakers for narrow, flat feet, but I like the Adidas Ultra Boosts even better than my Hoka Cliftons. In addition to being durable and supportive, they're stylish shoes that look good beyond the gym or walking trail. Though these aren't specifically for narrow feet, they hug my heels nicely and provide a good sense of stability. ... show more
Reviewed in the United States on May 30, 2024 by E. Peterman

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