Details: A great combination of durability, comfort, and protection. 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 percent cotton FR duck. 11.5-ounce, quilt lining-FR mod acrylic batting quilted to FR twill face cloth, high back with FR elastic suspenders and FR center-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/HRC 4 labels sewn on front pocket. Meets the performance requirements of NFPA 70E standards and is up classified to NFPA 2112.