Osprey Mens Thermal Long Sleeved Rash Vest - Black - 2021 The new Osprey Mens Thermal Long Sleeved Rash Vest has been designed from premium quality materials that make it light, soft and super comfy. Ideal for wearing in the summer or spring seasons or even under a wetsuit for extra warmth and comfort. Great for preventing against chafing ensuring added insulation and a softer feel on the skin. Perfect for all your water sporting or beach going adventures. Features Super soft, quick dry 85% Polyester & 15% Spandex material which reduces irritation Flatlock seams increase seam strength and reduces friction on the skin when worn underneath a wetsuit UV 50+ protection which is perfect for those hot, sunny days to provide protection from harmful rays Complete with a boardshort connector to keep the rash vest in place whilst wearing Long sleeved design which acts as a second skin increasing movement around areas such as the shoulder, armpit and elbow