Adidas added more Boost to the Ultraboost 21 Running Shoe to give us maximum cushioning and effortless energy return. The twenty iterations before this version were already incredibly comfortable, but the extra foam and fresh upper feel like a whole new dream. The supportive, mostly-mesh upper grants a secure fit that's intended for comfort through the miles.
Adidas added more Boost to the Ultraboost 21 Running Shoe to give us maximum cushioning and effortless energy return. The twenty iterations before this version were already incredibly comfortable, but the extra foam and fresh upper feel like a whole new dream. The supportive, mostly-mesh upper grants a secure fit that's intended for comfort through the miles.
Adidas added more Boost to the Ultraboost 21 Running Shoe to give us maximum cushioning and effortless energy return. The twenty iterations before this version were already incredibly comfortable, but the extra foam and fresh upper feel like a whole new dream. The supportive, mostly-mesh upper grants a secure fit that's intended for comfort through the miles.
Adidas added more Boost to the Ultraboost 21 Running Shoe to give us maximum cushioning and effortless energy return. The twenty iterations before this version were already incredibly comfortable, but the extra foam and fresh upper feel like a whole new dream. The supportive, mostly-mesh upper grants a secure fit that's intended for comfort through the miles.
Last updated at 03/21/2026 15:21:29
Adidas Running Women Ultraboost 21 Triple White FY0403 6.5
Delivery $82.72
adidas ULTRABOOST 21 Running Shoes | Triple White | Women's CLOUD WHITE / CLOUD WHITE / GREY THREE / 6.5
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 sportsdirect.com
Great trainers! I work in the hospital and im on my feet for 10+ hours a day and these trainers are just perfect! Very lightweight and doesn’t hurt my feet. Also i like that the Adidas logo is barely visible
originally posted on finishline.com
BOUGHT TWO U 21.Unfortunately,I used the second one in 2 wks after I purchased.THE .LINING AROUND THE SHOES , CLOSE TO MY ANKLE IS SO THICK IT LITERALLY PUTTING PRESSURE ON MY SKIN.I THOUGHT WITH FEW USAGE , IT WILL MAKE IT SMOOTH.. BUT STILL SAME ISSUES.I CAN BARELY WALK.CONTACTED CUSTOMER SERVICE, SAID CAN'T DO ANYTHING,OR CAN RETURN THE SHOES..SMH....I'M AM AVID FAN OF THESE SHOES, BUT VERY POOOOOOR CUST SERVICE..
Adidas Running Women Ultraboost 21 Triple White FY0403 6.5
Delivery $82.72
adidas ULTRABOOST 21 Running Shoes | Triple White | Women's CLOUD WHITE / CLOUD WHITE / GREY THREE / 6.5
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.
Great trainers! I work in the hospital and im on my feet for 10+ hours a day and these trainers are just perfect! Very lightweight and doesn’t hurt my feet. Also i like that the Adidas logo is barely visible
BOUGHT TWO U 21.Unfortunately,I used the second one in 2 wks after I purchased.THE .LINING AROUND THE SHOES , CLOSE TO MY ANKLE IS SO THICK IT LITERALLY PUTTING PRESSURE ON MY SKIN.I THOUGHT WITH FEW USAGE , IT WILL MAKE IT SMOOTH.. BUT STILL SAME ISSUES.I CAN BARELY WALK.CONTACTED CUSTOMER SERVICE, SAID CAN'T DO ANYTHING,OR CAN RETURN THE SHOES..SMH....I'M AM AVID FAN OF THESE SHOES, BUT VERY POOOOOOR CUST SERVICE..
Terrible running shoe. The shoes are very heavy with minimal flexibility available in the forefoot and no responsiveness from the shoes when running. A great disappointment from previously bought addidas ultraboost shoes, sadly not new and improved.
I took a chance with the sizing but fitted perfectly. I'm a size 5 shoe but always go for 5.5 size in trainers. I only run up to 3 times a week short distances of 5ks. So I can't comment about longer runs. But they do the job for me. Fit perfectly round my ankles.
I love these shoes! They are so comfortable for walking around and working out on the treadmill. Great cushion and arch support! I love them so much I also have the white pair.
I use these for the gym & athleasue because they're cute! Super comfortable. I have the ash peal & pink. Great support for hit workouts, just enough cushion. I love them!
Absolutely love these ultra boost adidas they are literally worth the cost I feel like they are a better investment from when I spent hundreds of dollars on gym memberships and I never go. Since I got my ultra boost I felt like my body is getting toner! I am a size 7WIDE and I got 7.5 Regular because they don't carry wide, but I could of done 7Regular and the fit would of been better, but is okay! I have thick socks to help with the the remainder .5 to fill in! I am 5'5 175lbs
I love these shoes! I've previously had two 7.5s in adidas and after a year and a half, I finally had enough and new I had to half size up. I bought these and they're fantastically comfortable running shoes. I love adidas' sock style shoes, love that they're roomy in the toe and were a great blind buy!
Unisex. Very comfortable. Good for walking. I use it as everyday wear. Water repellent.
