. . Engineered with input from operators in the field, the 5.11 PDU Class A Long Sleeve Twill Shirt consistently exceeds the expectations of law enforcement. . officers around the world. An ideal foundation for your PDU or Dress Uniform, the Class A 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 offers enhanced. . resistance against stains, moisture, and soil, permanent creases ensure a crisp, professional appearance, and a bi-swing shoulder design provides full. . mobility. 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. . 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. . Triple needle stitching. . Bartacking reinforcements at key stress points. . Melamine buttons won't melt, burn, or crack. . Fishtail hem for a confident fit. .