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.Features5 oz mesh jacquardGreater Arm Mobility for freedom of movementMoisture Movement Technology wicks away moisture from skinClimateTEK for dynamic and temperature regulated coolingFreshTEK sustainable odor-resistanceHooded baselayerPonytail holder on the hoodAdditional pocket weltMaterials100% PolyesterImported