Merrell Men's Grassbow Air Trail Running Shoe 100% Leather and fabric Imported Synthetic sole Heel measures approximately 1" Platform measures approximately 0.5" External TPU heel counter Underfoot Trail Protect Pad M-Select FRESH removable anti-odor footbed In-board compression-molded EVA footframe Heel air cushion Stay cool and connected with this nimble hiking shoe, made with ultra-breathable mesh to let the air flow.