Carhartt FR Flame Resistant Denim Jeans Mens 36x40 Blue ARC 2 NFPA 2112 280-83 Heavyweight flame-resistant denim jeans designed for industrial safety and durability. These rugged work pants meet NFPA 2112 and ASTM F1506 standards, featuring a CAT 2 / ARC 2 rating for protection against flash fire and electric arc hazards. Constructed from 100% cotton FR denim from Mount Vernon Mills, they offer a classic five-pocket design, brass zipper fly, and a traditional straight leg fit suitable for demanding work environments. #Workwear #Industrial #Safety