Columbia Men's Freeze Degree Long Sleeve Shirt (Omni-Freeze ZERO) 86% polyester/14% elastane Flex Stretch woven Imported Pocket with hok and loop closure Omni-Freeze ZERO sweat-activated super cooling Omni-Wick EVAP advanced evaporation Omni-Shade UPF 50 sun protection Mesh Pocket bag Pocket with hook and loop closure