PUREBOOST JETSHADOW NAVY FTWR WHITE CORE BLACK Lace closure Textile lining BOOST midsole Textile upper You don't have to run far to feel the benefits of training. Slip on these adidas shoes and you're only a few miles away from a good mood. They're designed for short runs, with a BOOST midsole that offers incredible energy return with every step. The Stretchweb outsole flexes naturally for an energised ride, and Continental Rubber gives you superior traction.