Ariat® FR knit work shirts are constructed with the ultimate comfort, technology and durability in mind. Feel great and move about freely in this structured 1/4-zip, crafted from ultra-soft, premium-quality Supima cotton with a touch of stretch. CAT 2 ATPV 8.3 cal/cm2 NFPA 70E NFPA 2112 Greater Arm Mobility seam construction for maximum range of motion Moisture Movement Technology™ wicks moisture away from the skin VentTEK™ technology features body mapping to enable air flow and regulate body temperature Elastic fibers woven into fabric for maximum flex 6 oz ultra-soft stretch FR knit Stretch side and back panels Mock collar with zip closure Screen printed US flag at shoulder 93% Supima® cotton, 7% spandex Imported Ariat | FR Combat Stretch 1/4 Zip LS Work Shirt | Navy