Bought this shirt for casual hiking outdoors. It helps keep me very dry, the fabric is polyester and is very "cool" to the touch. It feels good against the skin on a hot days hike, and helps the sweat evaporate quickly. I like the fit; 5'8" 140lbs the small fits perfectly, not loose just a bit snug. Polyester helps keep the sweat smell down moreso then cotton alternatives. I've worn this shirt for a few day backpack trek before (w/out cleaning/shower) and had no problem with itching or discomfort. For under 10$ you really cant beat this shirt!