Skechers Performance Men's Go Bionic Prana Running shoe 100% Synthetic Rubber sole Heel measures approximately 1" Platform measures approximately 0.5" Ultra lightweight mesh uppers constructed with exoFit that surrounds the foot with supportive and breathable materials Smooth shoe lining and removable insole for comfortable barefoot wear Agion scent protection built in to combat odor causing elements 18 Bio-Responsive Resalyte cushioning zones adds protection without compromising responsiveness Innovative M-Strike design promotes a midfoot strike