. . The Ripstop® Long Sleeve TDU Shirt sets a new benchmark in tactical efficiency, replacing antiquated BDU items by providing an enhanced structure, lighter. . materials, and stronger fabric reinforcements for increased performance and reliability across the board. The ideal choice for serious tactical, law. . enforcement, or private security operators, the TDU Long Sleeve Ripstop Shirt is built from a proprietary 5.11 fabric that resists scuffs, abrasions, and. . tears, and features a Teflon® fabric treatment that repels liquids, stains, and soil. Our patented Hidden Document Pockets at the chest offer plenty of. . covert storage space, bi-swing shoulders ensure full freedom of movement, and 26 inidual bartacks at high stress locations ensure that the Long Sleeve. . TDU Ripstop is the toughest tactical shirt on the market.. . Comfortable, durable, functional. . Replaces aging BDU product lines. . Bi-swing shoulder for a wider range of motion. . Teflon® treated for stain and soil resistance. . Patented 5.11 Hidden Document Pockets. . Poly/cotton Ripstop fabric. . Triple-stitch construction. . 26 inidual bartacks at key stress points. . Tough melamine buttons wont’ burn, crack, or melt. .