The Carhartt Men's Flame-Resistant Rugged Flex Straight Traditional Fit Jean is made from durable, stretchy technology that allows you to move with ease. This straight leg design sits at your waist comfortably, slim through seat and thigh, and is garment washed for a soft, relaxed finish. An arc-resistant button closure and brass zipper fly, with Nomex FR zipper tape ensure security during hard working activities. The Rugged Flex Jean also features triple-stitched main seams, Carhartt FR label sewn on back pocket, and NFPA 2112/HRC 2 label sewn on coin pocket. Meets the performance requirements of NFPA 70E standards and is UL Classified to NFPA 2112. Imported.