The sharkskin men’s zipfront short sleeve top is created with chillproof technology, making it an aquatic specific, windproofposite rashguard developed specifically for watersports athletes. It’s made with an inbuilt radiator function, and provides ultimate versatility by zipping up for 100% warmth and protection, or zipping down when thees out or your work rate goes up. It also has a high collar to keep your neck warm. Fortable micro fleece’ layer is next to the skin to wick moisture and sweat away from the body and keep you dry. The second middle technical’ layer is 100% windproof, yet breathes to regulate body temperature and stop 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. The sharkskin chillproof is neutrally buoyant, anti-microbial, odor resistant, itch resistant, and machine washable.