Launching as part of the NCAA Pack, the adidas UltraBoost 21 showcases vibrant accents in a nod to ‘The U.’ Recycled Parley Ocean Plastic is integrated into the white Primeknit upper, contrasted by orange three-stripes and a molded green heel counter. A woven tag affixed to the heel displays dual adidas and ‘U’ branding, while mismatched chenille tongue tags feature an adidas logo and Sebastian the Ibis. ‘It’s all about the U’ is printed across the right sockliner. Performance benefits include a Boost midsole, a Continental rubber outsole, and adidas’ LEP system for enhanced responsiveness.
Launching as part of the NCAA Pack, the adidas UltraBoost 21 showcases vibrant accents in a nod to ‘The U.’ Recycled Parley Ocean Plastic is integrated into the white Primeknit upper, contrasted by orange three-stripes and a molded green heel counter. A woven tag affixed to the heel displays dual adidas and ‘U’ branding, while mismatched chenille tongue tags feature an adidas logo and Sebastian the Ibis. ‘It’s all about the U’ is printed across the right sockliner. Performance benefits include a Boost midsole, a Continental rubber outsole, and adidas’ LEP system for enhanced responsiveness.
Launching as part of the NCAA Pack, the adidas UltraBoost 21 showcases vibrant accents in a nod to ‘The U.’ Recycled Parley Ocean Plastic is integrated into the white Primeknit upper, contrasted by orange three-stripes and a molded green heel counter. A woven tag affixed to the heel displays dual adidas and ‘U’ branding, while mismatched chenille tongue tags feature an adidas logo and Sebastian the Ibis. ‘It’s all about the U’ is printed across the right sockliner. Performance benefits include a Boost midsole, a Continental rubber outsole, and adidas’ LEP system for enhanced responsiveness.
Launching as part of the NCAA Pack, the adidas UltraBoost 21 showcases vibrant accents in a nod to ‘The U.’ Recycled Parley Ocean Plastic is integrated into the white Primeknit upper, contrasted by orange three-stripes and a molded green heel counter. A woven tag affixed to the heel displays dual adidas and ‘U’ branding, while mismatched chenille tongue tags feature an adidas logo and Sebastian the Ibis. ‘It’s all about the U’ is printed across the right sockliner. Performance benefits include a Boost midsole, a Continental rubber outsole, and adidas’ LEP system for enhanced responsiveness.
Last updated at 04/17/2026 12:32:09
Adidas Running Men Ultraboost 21 Triple Black FY0306 10.5
Delivery $81.58
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 finishline.com
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...
originally posted on hibbett.com
Ultraboost are the best running shoes you can find. I've been running for 20 years and tried several brands and models over the years. I've been purchasing Ultaboost for the past 3 or 4 years and they are amazing. The tread on the bottom will wear out long before the shoes looses its comfort.
| General | |
| Product Type | Running Shoes |
| Color | Black |
| Shoe Size | 10.5 |
Adidas Running Men Ultraboost 21 Triple Black FY0306 10.5
Delivery $81.58
These shoes are pretty decent. They have plenty of cushioning in the heel for heel strikers. I’m enjoying them for my runs.
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...
Ultraboost are the best running shoes you can find. I've been running for 20 years and tried several brands and models over the years. I've been purchasing Ultaboost for the past 3 or 4 years and they are amazing. The tread on the bottom will wear out long before the shoes looses its comfort.
The fit is almost tight enough not to need any laces. I havent tried the size up. I'm normally a 8.5 on Nike but this is snug fit. The archilles tendon has two plastics to hold the shoe in and its tight if you use any cross training or side movements. Just good for running. Been running on a treadmill and not used outdoor.The top lip of my left shoe flips back and doesnt look all that great when i wear it. If only they moved the adidas label just a bit higher so it wont flip back .
I purchased the 21 Boost based on previous experience with the 20's. While these are very different in looks, they provide the same comfort. I'm not a runner, but the cushion in these really help alleviate back pain during long time use. The color way is amazing, I'm a fan of the small details in the upper of the shoe with small touches of the accent color throughout. If you're looking to buy a pair but find yourself on the fence, make the jump. Your feet and back will thank you and you'll get plenty of compliments as an added bonus.
This is the most comfortable shoe Ive bought so far, Ive not stop wearing it since Ive gotten my hands on it. My work requires me to be on my feet all day long and walk as well and these have proven to keep me comfortable all day long no matter how much I stand or walk.
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'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.
very nice shoe-- need to break it in some--tight and snug-but its ok--feels good-and such a handsome shoe will wear more for special trips--
| General | |
| Product Type | Running Shoes |
| Color | Black |
| Shoe Size | 10.5 |
