CLICK HERE FOR VIDEO One Size Fits All Polyolefin Hot Socks offer the ultimate warmth for cold water activities. Wear underneath your neoprene boots for the greatest warmth and protection. Benefits of Polyolefin: Wicking Polyolefin material wicks moisture away from the skin more effectively than any other fiber, keeping the wearer warm and dry. Superior Insulation Polyolefin has the highest insulating capacity of any fiber, natural or man made. Warmth without bulk while being extremely durable. Will not fade when exposed to sunlight Washable and care free. Does not retain odors.