adidas UltraBoost 4.0 Nubuck Cage F36641 CBlack/CBlack/Core Red

The UltraBOOST was once the flagship of adidas running. In particular the colorBOOST versions were coveted. As adidas has failed to launch a new and innovative cushioning tech BOOST has become expected and this has caused prices to drop. You can find older versions of general release UB at over 50% off in some stores….