Continental Better Rubber outsole Lace closure Adidas PRIMEKNIT+ textile upper Regular fit Experience epic energy with the new Ultraboost Light, our lightest Ultraboost ever. The magic lies in the Light BOOST midsole, a new generation of adidas BOOST. Its unique molecule design achieves the lightest BOOST foam to date. With hundreds of BOOST capsules bursting with energy and ultimate cushioning and comfort, some feet really can have it all.