Built with active perspiration control and quick-dry fabricplaceholderforcommas this men's T-shirt is crafted with polyester stretch ultralight jersey fabric and will keep you comfortable on the hottest days and on your longest runs. The high air permeability and UV protection equals total protection from the sun while guaranteeing the breathability you need to stay cool. Whether you're running through the hillsplaceholderforcommas hiking to the cragplaceholderforcommas or working out mid-weekplaceholderforcommas our Topographic Sublime T-shirt keeps you comfortable and focused.