PosiCharge technology helps preserve colors and logos in a mesh that wicks moisture, resists snags and controls odors. 4-ounce, 100% polyester double mesh with PosiCharge technology, Partially made from recycled coffee grounds, Contrast neck taping, Tag-free label, Self-fabric collar, 3-button Y-placket with dyed-to-match buttons, Set-in, open hem sleeves.