Adidas UltraBoost 21 Men's Running Shoe - Crew Navy/Crew Navy/Core Black Size:9 UK In the outsole

In the outsole

There are mesh inserts behind the knee for ventilation to prevent you from overheating and flatlock seams help to stop chafing

Thin tongue features segmented padding to help cut down on lace pressure

the stylish looking Everyday Running jacket is made from activate fabric that is wind and water resistant as well as extremely breathable

Grooves on the bottom make it flexible

Adidas UltraBoost 21 Men's Running Shoe - Crew Navy/Crew Navy/Core Black Size:9 UK In the outsoleThe 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