A great combination of durability, comfort, and protection. This lined overall resists flash fire and arc flash, but never hard work. It’s not just what you want, it’s what you need. • 13-ounce, 100% cotton FR duck • 11.5-ounce, quilt lining: FR modacrylic batting quilted to FR twill face cloth • High back with FR elastic suspenders and FR side-release buckles • Chap-style double-front enhances durability • Brass zipper fly with Nomex® FR zipper tape • FR melamine buttons at waist • Multiple tool and utility pockets • Ankle-to-thigh brass leg zippers with Nomex® FR zipper tape and protective flaps with arc-resistant snap closures • Carhartt FR and NFPA 2112/CAT 4 labels sewn on front pocket • Meets the performance requirements of NFPA 70E and is UL® Classified to NFPA 2112