More than 25% of body-heat is lost through the head and extremities of the body. The Sharkskin chill-proof hood by bare is design provide the best-insulation and protection for cold dives and water Sport activities. It can even be worn-under-a-conventional neoprene hood as layering for extra warmth. The chill-proof hoods slick fabric also makes donning-the-stiffest-neoprene-hood easy and prevents hair from being pulled. When worn as a standalone the hood protects-against chaffing from mask straps, keeps your head and ears toasty warm, and is flexible-enough to slide-off if required, while still remaining-comfortable. Sharkskin chill-proof material is an aquatic specific, windproof 3-layer composite material that has been developed for water sports athletes. The comfortable Micro fleece' layer is next-to-the-skin and Wicks' moisture and sweat away from the body to help keep-you-dry. The second middle technical' layer is 100% windproof yet breathes to regulate-body-temperature while stopping-wind-chill. The third outer layer is a nylon/lira blend for abrasion resistance and 4-way-stretch. It is also UV resistant for sun protection and has a durable water repellent finish (DWR) to provide a protective shell that sheds' water. Sharkskin chill-proof is neutrally buoyant, anti-microbial, odor resistant, itch resistant and machine washable. The hood is available in multiple sizes, is Black in color and is covered by a 12 month limited warranty.