100% natural rubber compound calf high boot with non-slip razor cut soles, the ideal boot for on deck use. Technology 100% natural rubber compound. Non-slip razor cut soles for grip. Features 100% natural rubber compound Quick drying polyester lining Removable cushioned inner soles Fabric Composition 100% natural rubber compound Product Care Remove salt and grit by washing under a tap or hose with fresh water. The outside of the boots can be cleaned with a warm non-detergent soap solution and rinsed thoroughly. Use a stiff brush to remove stubborn residue. You can also clean the inside of the boot with fresh water and a non-detergent soap. Wipe well to remove excess water inside and out. Allow to dry naturally away from a direct heat source. To improve the drying time, place screwed up newspaper inside the boots. For best results dry for at least 48 hours. Store out of direct sunlight.