The external sole design includes flex grooves that adapt to irregular surfaces without compromising integrity, running training shoes difference.
The Adidas UltraBoost 21 Men's Running Shoe is the latest in a long line to use boost technology. With no EVA, the midsole is entirely constructed from boost, giving you the ultimate in cushioning and energy return. The new Torsion System provides a 15% increase in forefoot bending stiffness for a much more responsive run. The shoe is 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 yaStretchweb also compliments this by allowing boost to move and adapt, expanding with the foot and with no restrictions. The heel counter is softer and opened up slightly around the achilles for a more natural feel and movement, but without compromising on its support.Features
- Sock-like fit
- Lace closure
- adidas Primeknit upper
- Textile lining
- Supportive heel counter
- Boost midsole
- Weight: 340 g
- Midsole drop: 10 mm (heel 30.5 mm / forefoot 20.5 mm)
- Stretchweb outsole with Continental Rubber
- Primeblue
The internal arch bridge offers supportive contact that conforms to the foot's unique structure, bounce running shoes.
