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 14-zip, crafted from ultra-soft, premium-quality Supima cotton with a touch of stretch. FR Combat Stretch Patriot 14 Zip Work Shirt Product Features : Greater Arm Mobility lets you move freelyMoisture Movement Technology helps keep you dryVentTEK technology puts airflow where you need it most to keep you cool, Mock collar with zip closureStretch side and back panelsScreenprinted details Men's Flame-Resistant Combat Stretch Patriot 14 Zip Work Shirt in Bistro Cotton, Size: Large by Ariat