Propper Men's Summerweight Tactical Short Sleeve Shirt 94% Nylon/6% Spandex Ripstop Imported Durable ultra-lightweight fabric wicks moisture away from the body, keeping you cool, dry and comfortable UPF 50 for all day sun protection Pen pocket inside left chest pocket Mesh-backed shoulder vent for breathability Additional side-access chest pocket with hook and loop closure 4.2 oz 94% nylon / 6% spandex ripstop