This long sleeve tee is great for men who are into outdoor activities like fall golf trips or corporate events. It's made of 100% polyester interlock with PosiCharge technology and weighs 4 ounces. With its UPF 50 rating, it offers great UV protection. You can wear it alone or layer it depending on the weather. It also has a removable tag for comfort and easy relabeling, and set - in sleeves for a nice fit.