A sweat-wicking cooling graphic t-shirt for summer hikes. Stay Cool. Hike through the heat in this crew neck graphic t-shirt with sweat-activated cooling system to keep you feeling cool when temperatures rise. Summer Fresh. The sweat-wicking fabric and side panels draw moisture away from the skin to keep you fresh, even on tough days. Features: Omni-Freeze™ Zero sweat-activated super cooling. Omni-Wick™. Omni-Wick™ side panels. Uses: Hiking, Fast Hiking, Water. Composition: 100% Polyester. 52% Recycled Polyester, 48% Polyester.