Merrell Women's Glove 4 Trail Runner 100% textile and synthetic Imported Synthetic sole Mesh Upper, Breathable mesh lining Zero Drop/4MM Cushion; 3mm lugs Trail Protect pad offers underfoot protection Vibram Outsole; Durable Stack height (heel/toe): 11.5/11.5mm; footbed: 0mm; insole: 3mm; midsole: 4/4mm; sole: 1.5 web, 3mm lugs