Athletic cut back with action-stretch fabric insert and HeiQ technology give you maximum flexibility with a professional look

For charging

repel liquids

11® Ready Pocket™ on chest for storing documents or a phone

5.11 Fast-Tac TDU Long Sleeve Shirt Large Opening Connectors Athletic cut back with action-stretch5. 11 Fast Tac TDU Long Sleeve Shirt Engineered to be highly durable while remaining lightweight and comfortable, the Fast Tac TDU Long Sleeve Shirt is the newest in innovation from 5. 11 that features a breathable look and feel, and added a C6 water resistant finish for extra protection in arid climates. Shop the Fast Tac Uniform Collection. Lightweight, breathable TDU Shirt Loose fit for functional movement Bi swing shoulder for a wider range of