Henderson's Thermoprene High Top Boot Uppers are constructed from Soft and comfortable premium 3, or 5 mm Thermoprene neoprene material. All seams on upper are glued and sewn for durability and warmth using durable bonded thread. The Soles are constructed from soft and flexible thermoplastic rubber. The boot's Soles have integrated hardened inserts for puncture resistance. The boots have aggressive tread pattern, providing traction, making them great for all watersports or just walking in or around water, the beach, boat or dock. Wetsuit boots are designed to keep your feet warm, not dry, when they are used in,under or around water. Mens LARGER boot sizes available up to 16USHenderson 3mm Thermoprene Hi Top Boots Balance of Performance and Price Greater Flexibility than Standard Neoprene 75% More Stretch than Standard Neoprene Features and Design Benefits of More Expensive Boots Nylon 2 Thermoprene, Neoprene Material Glued &am