Carhartt Men's Flame Resistant Work Pant 45% Modacrylic/35% Lyocell/20% Aramid Imported Machine Wash NFPA 2112 Compliant HRC2 ATPV 10.1 Relaxed seat and thigh Arc-resistant button closure at waist Brass zipper fly with Nomex FR zipper tape Two reinforced back welt pockets Triple-stitched main seams Straight leg opening Carhartt FR label sewn on back pocket NFPA 2112/HRC 2 label sewn on front waistband INHERENTLY FLAME RESISTANT FABRIC