Lightweight support. Cushioned comfort. Dependable traction. The Mizuno Wave Rider 21 running shoe has it all, thanks to a breathable mesh upper, Neutral Wave plate midsole, and X10 carbon rubber outsole. When you lace up the Wave Rider 21, you step into top-of-the-line cushioning that absorbs impact, encourages a smooth stride, and returns energy to every step so you stay light on your feet from mile one until you're done.