Features of the Chaco Women's Outcross Evo Free Shoe Upper: Combined mesh, polyester jacquard webbing, and synthetic leather Upper with open sidewall construction for ventilation Synthetic leather heel and toe cap for durability and protection Speed lacing with quick cord lock Semi-collapsible heel construction Midsole: Luvseat PU Nylon shank for stability and durability BArefoot construction with instant-comfort EVA layer Antimicrobial application for odor control Outsole: Non-marking Ecotread 25% recycled rubber compound 3 mm lug depth with molded siping