The 5.11 Tactical Shirt is loaded with 5.11 innovative features. patented hidden document pockets are large enough to stash flight tickets, maps, etc., and subtle enough to stow-away a small backup. Triple stitched, and bartacked like pants for excellent durability. shirts feature pen pockets on the left sleeve, a back vent with a Dri-X-treme mesh backing, hidden button-down reinforced collar and front pockets with a hook-and-loop closure. Available in long sleeve and short sleeve in 5.4 ounce 100% cotton canvas or a 4.7 ounce 100% nylon ripstop. Long sleeve features a double-elbow and sleeve keepers to help keep your sleeves rolled up. Imported.