Engineered with input from operators in the field, the 5.11 PDU Class B Long Sleeve Twill Shirt consistently exceeds the expectations of law enforcement officers around the world. Designed to stand up to consistent use in harsh duty environments, the Class B Long Sleeve Twill PDU Shirt is crafted from our 5.78 oz. poly/cotton twill fabric for the perfect blend of rugged durability, reliable performance, and breathable comfort. A Teflon treatment maximizes resistance against stains, moisture, and soil, our patented 5.11 Hidden Document Pockets offer ample and covert storage, and a bi-swing shoulder design provides full mobility. Sewn-in military creases and integrated collar stays ensure a crisp, professional appearance in any setting. Additional features include underarm vents to keep you cool and dry, an integrated badge tab, an epaulette kit, and pass-through mic cord access to keep you connected Rugged durability, breathable comfort Permanent creases ensure clean lines 5.11 Hidden Document Pockets at the chest Underarm vents maximize breathability Teflon treatment for stain, soil, and moisture resistance Pass-through mic cord access Integrated pen holders in chest pockets Bi-swing shoulders for full mobility Secure badge tab Includes an epaulette kit 5.78 oz. poly/cotton twill fabric Integrated collar stays Triple needle stitching Bartacking reinforcements at key stress points Melamine buttons won't melt, burn, or crack Fishtail hem for a confident fit