Built to get the job done, the Ariat Flame-Resistant Insulated Bib Overalls 2.0 for Men are CAT 4 rated to protect against flash fire and electrical arcs, 54 cal/cm2 Arc Rated to protect against second-degree burns from electrical arcs, meet NFPA 70E/ASTM F1506 requirements, and are UL classified to NFPA 2112 standards. These chap-style, double-front construction overalls also have a durable water-repellent (DWR) finish that shields against the elements. Durable 11-oz., 88% cotton/12% nylon flame-resistant canvas stands up to wear and tear while keeping you warm and comfortable. Also features utility pockets, internal-access pockets, ankle-to-thigh leg zippers, and a boot cut. Designed to be worn over jeans. You may need to size down to wear over knit pants. Imported.Manufacturer style #: 10034731. Durable 11-oz., 88% cotton/12% nylon flame-resistant canvas CAT 4 rated to protect against flash fire and electrical arcs 54 cal/cm2 Arc Rated to protect against second-degree burns from electrical arcs Meet NFPA 70E/ASTM F1506 requirements UL classified to NFPA 2112 standards DWR finish Chap-style, double-front construction Utility and internal-access pockets Ankle-to-thigh leg zippers Boot cut