This Sport-Tek Men's Sapphire Posi-UV Pro Tee is perfect for men who love hitting the gym or spending time at the driving range. It's also great for team events or as company uniforms. The tee is made of 4 - ounce, 100% polyester interlock with PosiCharge technology. It has an UPF rating of 50 for UV protection and set - in sleeves. There's a removable tag for comfort. Whether you're sweating it out in the gym or enjoying the outdoors, this tee will keep you dry and protected.