Meets the performance requirements of NFPA 70E UL® classified to NFPA 2112 Carhartt FR and NFPA 2112/CAT 2 labels sewn on front pocket High back with FR suspenders and FR center-release buckles Multi-compartment bib pocket Two large lower-front pockets Two reinforced back pockets Double-layer knees with openings for adding knee pads and cleaning out debris Ankle-to-above-knee brass leg zips with Nomex® FR zipper tape and protective flaps with arc-resistant snap closures Specs Fabric:   100% Cotton FR Duck