Inherently flame-resistant fabric gives this shirt the power to deliver high-level protection in an ultra-light weight with a soft hand feel. Excellent breathability and sun protection also make this an essential you can count on in hazardous work environments. FR Air Inherent Work 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 comfortableSun Protection Fabric™ helps block harmful UV rays, keeping you covered and comfortable during long days outdoors Men's Flame-Resistant Air Inherent Work Shirt in Medium Blue, Size: Large_Tall by Ariat