The Gul CodeZero Windward 5mm boot is the ideal footwear for on the water. Made from 5mm durable D-Flex neoprene with Titanium 2 lining, designed to reflect the heat back in keeping your feet toasty warm. Featuring Hiking system incorporated into the rubber giving improved grip and connectivity with hiking straps. Reinforced heel and toe with high grip contoured articulated sole. The ideal boots for hiking.