When the heat is on, the 5.11 Tactical Fast-Tac Short Sleeve Shirt keeps you cool and calm so you can stay ready for anything the job throws at you. 5.11's exclusive 100% polyester Fast-Tac 4.7oz ripstop fabric is engineered to withstand daily wear and tear, plus a whole lot more. With two chest pockets and a sleeve pen pocket that are compatible with embroidery and patches, the 5.11 Tactical Fast-Tac Short Sleeve Shirt can be adapted for a variety of situations and assignments.