Tyndale Men's FRMC Rustic FR Button Down Work Shirt FRMC? Made in USA 7 oz. FRMC Rustic Chambray; INHERENTLY FLAME RESISTANT FABRIC; Moisture wicking and fast drying for added comfort Lightweight & breathable technology; Soft, durable wash and wear; Triple needle main seam construction Spread collar with hidden button down; Two chest pockets with inverted center pleats, button through & pencil slot Flash fire rated; Exterior Tyndale FR, arc rating, and HRC labels Made in USA by Tyndale; Arc Rating: 9.1 Ebt / HRC: 2