This Sport - Tek long - sleeve tee is great for men who love outdoor activities like fall golf trips or corporate team events. The tee is made of 100% polyester interlock with PosiCharge technology and weighs 4 ounces. It has a UPF rating of 50 for excellent sun protection, a removable tag for comfort, and set - in sleeves. Whether you're layering up on cooler days or wearing it alone, this tee is a practical choice.