New Balance Men's MT810 100% Synthetic and mesh Rubber sole Synthetic/Mesh upper provides lightweight comfort and support N-ERGY in the midsole provides NB's most advanced shock absorption and cushioning AT Tread all terrain outsole combines a running and trail lug configuration for on and off road use C-Cap midsole provides cushioning and support Men's sizes: D Standard, 4E Extra Wide WEIGHT 13.65 OZ