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adidas Women's Ultraboost 21 Running Shoe

  • Based on 4,141 reviews
Condition: New
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Availability: Only 4 left in stock, order soon!
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Arrives Thursday, Mar 19
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Size: 8


Color: Black/Black/Carbon


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.


Product Dimensions ‏ : ‎ 8 x 4 x 7 inches; 2.45 Pounds


Item model number ‏ : ‎ KYQ94


Department ‏ : ‎ Womens


Date First Available ‏ : ‎ August 22, 2018


Manufacturer ‏ : ‎ adidas


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Mar 19

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


  • Excellent Shoe - My Wife Loves It
Size: 8.5 Color: Grey/Grey/Grey
These shoes were on sale for a huge discount during Christmas. My wife is working on upping her running game and so I wanted to give her some shoe options. Normally, we buy Asics but since this model had so many positive reviews I felt like it would be worth it to give it a try, especially at the hugely discounted price. These have a dramatically different design style than the shoes she was used to. She immediately noticed that they were heavier than her other running shoes. But, after wearing them for a couple of runs and to work, she fell in love with them. Now, they are pretty much her favorite pair of running shoes that she has (out of 4 pairs). She wears a size 8 shoe but runs in an 8.5. These were a perfect fit. I'm so happy that she loves them and so I can definitely recommend them to others. ... show more
Reviewed in the United States 🇺🇸 on January 13, 2023 by Adam Turney

  • Highly recommend
Size: 9.5 Color: Grey/Grey/Grey
I wish the Ultraboost 21 were lighter because I did like the feel of them and the form-fitting upper. The upper part of the sneaker is thick and is designed to be more like a sock, which I like. It stretches to form around your foot. I would not say this is a high-volume shoe, but it easily molds to fit your foot in a very comfortable fashion. There is one challenge, if your socks are not super tight or are too thick, it's very easy for them to bunch up. The heel itself is very flexible and provides a tab to help pull the shoe on. I do admit that there are times where I'm struggling to slide my foot inside of the sneaker and that's when I wish I had the actual loop but at least there’s something built into the design. Overall, I have has nothing but an amazing and comfortable experience with this specific style. ... show more
Reviewed in the United States 🇺🇸 on December 17, 2022 by Joyce 815

  • Comfortable shoe
Size: 8 Color: Grey/Grey/Screaming Orange
I normally wear Adidas Ultraboost but I accidentally ordered the running version. These shoes are very comfortable. I wear them for work which involves a lot of walking and on occasion some short distance running. I don’t run or work out on them but for what I wear them for they are nice. While walking quickly thought the halls of a hospital the plastic on the heels can be quite loud… but that could in part be how I walk not sure. ... show more
Reviewed in the United States 🇺🇸 on January 3, 2023 by Rob N.

  • TTS, VERY comfortable. New fav 😊
Size: 7 Color: Mgh Solid Grey/Silver Metallic/Light
Purchased these to see if they would fit different from the Ultraboost 22 and they are definitely more comfortable! It almost feels like they are hugging my feet. Will definitely be buying more in different colors
Reviewed in the United States 🇺🇸 on January 14, 2023 by elizabeth

  • Love this shoe
Size: 10 Color: Black/Black/Grey
I love the style of shoe and I also love that on Amazon’s website it is 10 times cheaper. This is a great option for every day use or walking. I wouldn’t recommend this to lift weights or do any heavy HIIT workouts. I noticed on one of my shoes the inside sole rides up the back. I eventually had to superglue both of my soles down on the inside of my shoes. ... show more
Reviewed in the United States 🇺🇸 on January 3, 2023 by Maddy

  • Shock absorbing, little big snug.
Size: 9 Color: Black/White/Violet Tone
I love that they don't rub my heel, but they are a little snug. The sole is amazingly super shock absorbent which I love and need for work! Get so many compliments too ☺️
Reviewed in the United States 🇺🇸 on January 18, 2023 by Sarah Goycochea

  • Most comfortable shoes EVER!
Size: 9.5 Color: Grey/Grey/Grey
I originally purchased these for my daughter, but after hearing how comfortable they were for running and working out, I decided to order a pair for myself. I am so glad I did! I walk instead of running, but my feet have never felt so good! I highly recommend these shoes!
Reviewed in the United States 🇺🇸 on January 3, 2023 by TheJonesFamily

  • Great running and walking shoe!
Size: 9 Color: Halo Silver/Ice Purple/Rose Tone
Great running and walking shoe. The bounce back is quite comfortable when running, the cushioning is very comfortable but not excessive. Great for walking as well. This particular version is great for running in the cold as well, has a slightly better grip.
Reviewed in the United States 🇺🇸 on January 3, 2023 by SD

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