The flexible and lightweight adidas Performance Running Shoes response boost 2 for boys techfit promote natural running motion and every step is due to the BOOST FOAM cushioned insole. - Laces lateral reflectors provide better visibility in the dark breathable surface material mix made of elastic fabric, mesh and synthetic TECHFIT UPPER Upper to each foot adapts padded entry textile mesh inner processing molded outsole upper: Other materials, textile lining and insole: textile sole: Other material