The adidas Ultraboost 21 Running Shoes are the latest in an impressive line of innovation. Evolving over time from constant testing and feedback, the design of this running shoe has been completely overhauled for 2021. Offering a sock-like fit thanks to the stretchy and breathable Primeknit+ upper, padded collar and integrated tongue, while a heel counter and supportive midfoot cage provide security and a precision feel. The midsole has more boost than its predecessors - cushioning impact shock for an incredibly comfortable ride and working in synergy with the LEP Torsion System to give a stable transition through to a high energy toe-off. Finally, an updated Stretchweb outsole with Continental Rubber ensures long-lasting durability and grip. Boost Energy With 6% more Boost capsules present in the midsole, this current iteration in the Ultraboost series creates a softer underfoot feel that explodes with forward propelling energy. LEP (Linear Energy Push) Torsion System Delivering incredible energy return, the LEP Torsion System supports the midfoot for a smooth transition and provides a 15% increase in forefoot bending stiffness for a more responsive run. Recycled Primeblue materials Made with Primeblue - a high-performance recycled material made in part with Parley Ocean Plastic. 50% of the upper is textile, 75% of the textile is Primeblue yarn and no virgin polyester has been utilised making this the most sustainable Ultraboost model to date.
The adidas Ultraboost 21 Running Shoes are the latest in an impressive line of innovation. Evolving over time from constant testing and feedback, the design of this running shoe has been completely overhauled for 2021. Offering a sock-like fit thanks to the stretchy and breathable Primeknit+ upper, padded collar and integrated tongue, while a heel counter and supportive midfoot cage provide security and a precision feel. The midsole has more boost than its predecessors - cushioning impact shock for an incredibly comfortable ride and working in synergy with the LEP Torsion System to give a stable transition through to a high energy toe-off. Finally, an updated Stretchweb outsole with Continental Rubber ensures long-lasting durability and grip. Boost Energy With 6% more Boost capsules present in the midsole, this current iteration in the Ultraboost series creates a softer underfoot feel that explodes with forward propelling energy. LEP (Linear Energy Push) Torsion System Delivering incredible energy return, the LEP Torsion System supports the midfoot for a smooth transition and provides a 15% increase in forefoot bending stiffness for a more responsive run. Recycled Primeblue materials Made with Primeblue - a high-performance recycled material made in part with Parley Ocean Plastic. 50% of the upper is textile, 75% of the textile is Primeblue yarn and no virgin polyester has been utilised making this the most sustainable Ultraboost model to date.
The adidas Ultraboost 21 Running Shoes are the latest in an impressive line of innovation. Evolving over time from constant testing and feedback, the design of this running shoe has been completely overhauled for 2021. Offering a sock-like fit thanks to the stretchy and breathable Primeknit+ upper, padded collar and integrated tongue, while a heel counter and supportive midfoot cage provide security and a precision feel. The midsole has more boost than its predecessors - cushioning impact shock for an incredibly comfortable ride and working in synergy with the LEP Torsion System to give a stable transition through to a high energy toe-off. Finally, an updated Stretchweb outsole with Continental Rubber ensures long-lasting durability and grip. Boost Energy With 6% more Boost capsules present in the midsole, this current iteration in the Ultraboost series creates a softer underfoot feel that explodes with forward propelling energy. LEP (Linear Energy Push) Torsion System Delivering incredible energy return, the LEP Torsion System supports the midfoot for a smooth transition and provides a 15% increase in forefoot bending stiffness for a more responsive run. Recycled Primeblue materials Made with Primeblue - a high-performance recycled material made in part with Parley Ocean Plastic. 50% of the upper is textile, 75% of the textile is Primeblue yarn and no virgin polyester has been utilised making this the most sustainable Ultraboost model to date.
The adidas Ultraboost 21 Running Shoes are the latest in an impressive line of innovation. Evolving over time from constant testing and feedback, the design of this running shoe has been completely overhauled for 2021. Offering a sock-like fit thanks to the stretchy and breathable Primeknit+ upper, padded collar and integrated tongue, while a heel counter and supportive midfoot cage provide security and a precision feel. The midsole has more boost than its predecessors - cushioning impact shock for an incredibly comfortable ride and working in synergy with the LEP Torsion System to give a stable transition through to a high energy toe-off. Finally, an updated Stretchweb outsole with Continental Rubber ensures long-lasting durability and grip. Boost Energy With 6% more Boost capsules present in the midsole, this current iteration in the Ultraboost series creates a softer underfoot feel that explodes with forward propelling energy. LEP (Linear Energy Push) Torsion System Delivering incredible energy return, the LEP Torsion System supports the midfoot for a smooth transition and provides a 15% increase in forefoot bending stiffness for a more responsive run. Recycled Primeblue materials Made with Primeblue - a high-performance recycled material made in part with Parley Ocean Plastic. 50% of the upper is textile, 75% of the textile is Primeblue yarn and no virgin polyester has been utilised making this the most sustainable Ultraboost model to date.
Last updated at 04/21/2026 21:01:16
Adidas Ultraboost 21 Mens Shoe 9.5 / Grey/Orange/White
Delivery between 24–30 Apr $10
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 hibbett.com
Feels great, & ordered a half size up because of wider feet. With the half size up, fits perfectly!
originally posted on Academy Sports + Outdoors
Best shoes ever good quality made and my feet are very happy
| Parts Number | FY0375 , FY0375 |
| Colorway | Grey/Orange |
| Upper Material | Fabric |
| Sole Material | Rubber Sole |
| Toe Type | Round Toe |
Adidas Ultraboost 21 Mens Shoe 9.5 / Grey/Orange/White
Delivery between 24–30 Apr $10
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.
Feels great, & ordered a half size up because of wider feet. With the half size up, fits perfectly!
Best shoes ever good quality made and my feet are very happy
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.
Bought two pair of trainers ASICS gel Kayano which fit perfectly but had to return the Adidas ultra boost as were a bit tight .Sent back and ordered a half size up and they arrived four days later so very happy .
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.
Nice looking shoe, but the plastic lacing cinch rubs the top of the foot. Not a good shoe for my wife - needs more comfort.
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 love these shoes! The match most everything and are very comfortable!
Very comfortable! No aching feet anymore! I can stand all day with this shoes.
| Parts Number | FY0375 , FY0375 |
| Colorway | Grey/Orange |
| Upper Material | Fabric |
| Sole Material | Rubber Sole |
| Toe Type | Round Toe |
