When 5.11 Tactical created the short-sleeve Covert Casual Shirt in 2008 at the request of officers and operators, it became an instant hit. This spring, in addition to black, desert sand, slate blue and sage, the 5.11 Covert Casual Shirt will also be offered in brick and dark straw. The new textured plaid version comes in cadet, olive and dark straw. It’s made of a rayon/poly blend with an Ultraviolet Protection Factor rating of 40 (UPF40 sun protection). The shirt easily conceals a holstered sidearm and allows faster access to sidearm and waist-level gear.