Our IQ Short Sleeve Polo features a Zipper front placket, Self Fabric collar and Raglan sleeves. Bulwark Flame Resistant Clothing Fabric Information: Fabric: Flame-resistant, 5.3 oz. 69% Cotton / 25% Polyester / 6% Polyoxadiazole Hazard Risk Catagory: CAT 2 - NFPA 2112 Compliant Protection: Arc Rati