Carhartt Men's Flame Resistant Signature Denim Dungaree 100% Cotton Imported Machine Wash Relaxed-fit jean with triple-needle main seams featuring utility pockets and brass zipper fly with Nomex tape Arc-resistant button closure 11.75 oz denim Meets the performance requirements of NFPA 70 E standards and is UL Classified to NFPA 2112 Carhartt FR label sewn on back pocket HRC 2 label sewn on front waistband