This is the Sharkskin Men&';s Chillproof Vest Scuba Diving Exposure Garment for Scuba Diving, Surfing etc. Features: Designed for water sports enthusiasts who demand maximum maneuverability without sacrificing comfort and warmth Large arm sockets and a low-cut neckline protect the body&';s core while allowing maximum mobility for strenuous exercise By itself, under a wetsuit, or with a Rapid Dry as a second layer, this vest gets the job done Sharkskin Chillproof 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 windchill. The third outer layer is a nylon/lycra 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 Chillproof is neutrally buoyant, anti-microbial, odour resistant, itch resistant and machine washable. PERFORMANCE GUARANTEE Authentic Sharkskin garments come with a 12-month guarantee on workmanship. Excludes fading and degeneration as a result of excessive exposure to chlorine or sunlight. We guarantee Sharkskin will perform as advertised.