This men's light weight crew neck sun shirt is made of a super soft bird's eye mesh fabric that features permanent UPF 50+ Sun Protection. Quick dry. The fabric UV protectant which will help protect your skin from the sun when used outdoor. Loose fit, breathable, soft, comfortable and durable for long time use. It can also be used under your winter clothing for ski, snowboard, etc. Unisex cut, perfect for women and men. Great for a day of fishing, sailing, swimming, hiking and any other of your favorite outdoor activities.