Chaco Men's Outcross Evo 1 Hiking Shoe 100% Organic Canvas Imported Rubber sole Double-layer mesh upper with mesh-lined heel, midfoot and tongue Protective synthetic rubber toe cap and heel riser overlay Adjustable webbing around heel and ankle tightens collar to ankle Luvseat pu midsole, nylon shank for stability and durability, barefoot construction with instant-comfort eva layer and antimicrobial application for odor control Non-marking ecotread outsole of 25% recycled rubber compound and 3mm deep lug with molded siping