Description Featuring a built-in intelligent cooling system that works with your body temperature and a ponytail opening to keep hair out of the way, this premium lightweight base layer is ideal for outdoor work like construction, gardening and farming. It's also a smart choice to wear hiking or camping.PRODUCT DETAILS:5 oz mesh jacquard Greater Arm Mobility for freedom of movement Moisture Movement Technology wicks away moisture from skin ClimateTEK for dynamic and temperature regulated cooling FreshTEK sustainable odor-resistance Hooded baselayer Ponytail holder on the hood Additional pocket welt 100% Polyester Imported