Constructed from high-grade Lycra based fabric, the Hydroskin rashguards and suit are designed to wear under a wetsuit or semi-dry suit or as a UV shield for other water sport activities. The ultra-smooth fabric reduces friction between the skin and a wetsuit, and helps to stop chafing of tight/ill-fitting suits. Back print on all standard Hydroskins. Ultra-smooth fabric Stinger protection Perfect for snorkeling Ideal under rental wetsuits Material: 90% Nylon / 10% Elastane Care: Machine wash at 86degF and line dry Available in short and long sleeve in sizes S - XXXL with a variety of colors! Close-fitting with short sleeves - select a size up for a more relaxed fit.