Prototype after prototype. Innovation after innovation. Testing after testing. Meet us in the hot pursuit of the pinnacle harmonization of weight, cushioning, and responsiveness. Ultraboost 21. Say hello to incredible energy return.
Prototype after prototype. Innovation after innovation. Testing after testing. Meet us in the hot pursuit of the pinnacle harmonization of weight, cushioning, and responsiveness. Ultraboost 21. Say hello to incredible energy return.
Prototype after prototype. Innovation after innovation. Testing after testing. Meet us in the hot pursuit of the pinnacle harmonization of weight, cushioning, and responsiveness. Ultraboost 21. Say hello to incredible energy return.
Prototype after prototype. Innovation after innovation. Testing after testing. Meet us in the hot pursuit of the pinnacle harmonization of weight, cushioning, and responsiveness. Ultraboost 21. Say hello to incredible energy return.
Last updated at 03/21/2026 21:42:55
adidas Ultra Boost 21 Grey Screaming Orange (Women's)
Delivery $34.95
originally posted on Academy Sports + Outdoors
I have very high arches, plantar fasciitis and gets shin splints. I have tried every pair of “high arch” podiatrist recommended tennis shoes. These are the best! Better for me than ASICS Kayano, Brooks Ghost and Glycerin, and Nike Air Pegasus (and others). I’m soooo glad I found these and on sale! The arch is awesome and the tie box is wide.
originally posted on Academy Sports + Outdoors
These shoes are pretty decent. They have plenty of cushioning in the heel for heel strikers. I’m enjoying them for my runs.
originally posted on sigmasports.com
These shoes are extremely comfortable. Not only are they good to run in, they are extremely comfortable for just wearing on a regular commute as well. Highly recommend for anyone who walks a lot or runs on hard surfaces like roads or sidewalks.
| Release Date | 02-27-2021 |
| Nickname | Grey Screaming Orange |
| Colorway | Grey Two/Grey Two/Screaming Orange |
| Upper Material | Primeknit |
| Technology | Boost |
adidas Ultra Boost 21 Grey Screaming Orange (Women's)
Delivery $34.95
I have very high arches, plantar fasciitis and gets shin splints. I have tried every pair of “high arch” podiatrist recommended tennis shoes. These are the best! Better for me than ASICS Kayano, Brooks Ghost and Glycerin, and Nike Air Pegasus (and others). I’m soooo glad I found these and on sale! The arch is awesome and the tie box is wide.
These shoes are pretty decent. They have plenty of cushioning in the heel for heel strikers. I’m enjoying them for my runs.
These shoes are extremely comfortable. Not only are they good to run in, they are extremely comfortable for just wearing on a regular commute as well. Highly recommend for anyone who walks a lot or runs on hard surfaces like roads or sidewalks.
I got a great deal on these! I've been in love with the '19 and '20 model, and these aren't quite the same fit. However, I wear them for my workouts almost everyday and they do the trick.
I really liked the Ultraboost 20s and bought 2 pairs of the Ultraboost 21 to add in my rotation. I work out 4-5 days a week, doing cardio and weights. And these feel really good on my feet. I am not an avid runner, but as advertised, the additional boost feels more responsive and more cushioned. If you liked the Ultraboost 20s, you'll like the upgrade on the Ultraboost 21s. I am a heavy set guy, I've lost over 60 lbs in the last year, and have put my Ultraboosts through the test...
Adidas Ultraboost 20's are still my favorite shoe. But I love how the 21's have upgraded the support in the sole, and have tilted the shoe forward a bit to really propel you forward.
All out red looks exteemely sharp! The extended boost sole looks sharp and provides additional stability. Upper is well made with very little evidence of stich/glue lines. Can wear casually or for running but sole is not flat or firm enough for most gym leg-day exercises. We ordered a full size down as the shoe runs noticably large.
I have always loved the adidas UltraBoost shoes so were very excited to try the new 21s out. I was not disappointed! Super responsive and super comfy
I'm a fan of ultra boost tech, have had every model and decided to buy this one on sale. When it first arrived I was super excited to try them on. Out the box, my first impression was that it seemed to follow previous models and was made from solid materials, once on foot my feelings changed. Super comfortable, light weight but LONG. Mens size 8 looked more like a 10. The silhouette was more like a clown shoe paired with a huge heel and I just couldn't keep them.
The toe box elastic is too tight and squishes my toes and causes me a lot of pain so I can’t wear them. If it weren’t for that, I’d love this shoe. The soles of my feet were happy
| Release Date | 02-27-2021 |
| Nickname | Grey Screaming Orange |
| Colorway | Grey Two/Grey Two/Screaming Orange |
| Upper Material | Primeknit |
| Technology | Boost |
