This UltraClub men's t - shirt is perfect for active guys who love sports or outdoor activities. Whether you're hitting the gym, going for a run, or just out and about on a hot day, this t - shirt has got you covered. It's made of 4 oz., 100% micro - polyester, which is lightweight and comfortable. The athletic fit gives a sleek look. It also has UPF 30+ protection, keeping you safe from the sun. You can wear it on its own during warm weather or layer it up when it's cold.