You work hard and need protection from the possibility of flames on your job site. Walls got you covered. A button-down will always take it up a level. This Chambray work shirt increases both protection and style. Sharp and well cut, this shirt is 2112 UL certified and has an HRC Level 2 rating. The 7oz. 100% cotton chambray and back yoke keep it comfortable, whether high-level meeting or ground-level work. Material: Cotton.