This shirt has a built in holster pocket in the armpit area. It is perfect for your back-up gun.
Features:
80% polyester / 20% Spandex® fabric with breathable mesh
Truly unique construction, another 5.11 original
Mesh pockets securely and invisibly hold back-up gear
Mesh support over shoulder prevents sagging
Flat-lock seams
Dri-X-treme®, Anti-microbial, moisture wicking, quickdrying fabric