Lightweight and incredibly breathable, our FR AC T-Shirt is designed to keep you cool in hot weather. The soft fabric is powered by moisture-wicking technology to keep you dry when the job heats up. FR AC Crew T-Shirt Product Features : Greater Arm Mobility™ helps extend arm and shoulder range-of-motion so you can move freelyMoisture Movement Technology™ helps wick moisture away from the skin to keep you dry and comfortableVentTEK™ mesh panels provide ventilation in key areas to help keep you cool and comfortable, Crew neckRibbed collar and cuffs Men's Flame-Resistant AC Crew T-Shirt in Navy, Size: MT by Ariat