The Blauer long sleeve polyester ArmorSkin base shirt is made from breathable, moisture-wicking mesh fabric that creates the ultimate performance uniform shirt which is both professional and comfortable. Durable uniform shirting fabric combined with breathable, moisture-wicking mesh fabric creates the ultimate performance uniform shirt that is both professional and comfortable Designed to look like a Class A or B uniform shirt when worn under ArmorSkin LS Polyester Base Shirt matches Polyester Armorskin Lightweight, moisture-wicking stretch mesh covers torso area for quick-dry comfort, body temperature regulation and advanced mobility Durable 8.5 oz 100% Polyester fabric matches Blauer 100% Polyester shirting and pant fabric Banded dress collar 3-button center front placket 2-button adjustable cuffs Double pen pocket on left chest Blauer's Revolutionary ArmorSkin is the way to wear concealed body armor. ArmorSkin is the first ballistic vest cover system for law enforcement that provides relief from the heat and discomfort of conventional carriers, maintains a uniform look, and helps to alleviate lower back and hip pain. The system consists of the ArmorSkin vest, which covers your existing carrier, an ArmorSkin Base Shirt - our performance uniform shirt - worn as a base-layer or as an alternate uniform shirt, and an optional duty belt suspension system integrated into the vest. ArmorSkin and ArmorSkin Suspension System are patented (U. S. Patent No. 8, 528, 112).