adidas Performance Men's Energy Volley Boost Mid Volleyball Shoe 100% Textile and Synthetic Imported Synthetic sole boost is our most responsive cushioning ever: The more energy you give, the more you get SPRINT PLATE provides additional power for explosive movements by stabilizing and guiding foot during jumping and landing Highly abrasion-resistant, flexible synthetic SPRING WEB upper for ultimate durability Wide hook-and-loop strap over laces helps lock down the fit; Anti-slip lining provides a snug fit Rubber outsole designed for excellent grip on the volleyball court