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/spandex 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.