An ultra-tough performance shirt built to the specifications of the U.S. Special Operations community featuring a durable, thermoregulating fabric, reinforced shoulder yoke, and powerful sun protection. Fit & Design: Ultra-durable abrasion-resistant mesh micro-knit fabric Reinforced back and shoulder yoke holds up to plate carriers, weight vests, rucksacks, and packs Breathable, thermoregulating fabric wicks away moisture as your output increases Proplyo Stretch(TM) technology for maximum range of motion Technology: UPF rating of 45+ protects from harmful Sun rays Odorblock(TM) permanent anti-odor treatment