Chaco Women's Outcross Evo Free Sport Water Shoe 100% Synthetic Imported Rubber sole Combined mesh, polyester jacquard webbing, and synthetic leather upper with open sidewall construction for ventilation with synthetic leather heel and toe cap for durability and protection Speed lacing with quick cord lock with semi-collapsible heel construction Women's specific luvseat pu midsole with nylon shank for stability and durability Antimicrobial treatment for odor protection Non-marking ecotread 25%-recycled rubber compound with 3mm lug depth with molded siping