Features of the Merrell Women's Choprock Shoe Water friendly synthetic, mesh and webbing Upper Integrated rubber toe bumper for complete toe coverage and protection Integrated webbing loops for secure Fit Hyperlock molded TPU heel counter for security Hydramorph Midsole channels and ports for water evacuation and air ventilation Kinetic Fit BASE removable contoured EVA insole with water friendly top cover Compression molded EVA Midsole for stability and comfort Vibram Megagrip is a High Performance rubber compound featuring unparalleled grip on wet and dry surfaces Optimal balance of grippiness and durability 5mm Lug depth Hydramorph Technology transports water out of a shoe Keeps feet comfortable during water activities and significantly reduces the shoe's dry-out time Vibram Megagrip is a High Performance rubber compound featuring unparalleled grip on wet and dry surfaces Optimal balance of grippiness and durability