Add warmth to your workwear with Carhartt's flame-resistant duck bib overalls. Made of 13-ounce, flame-resistant 100% cotton duck with reflective striping, it features a high back with flame-resistant elastic suspenders and high temperature nylon center-release buckles. It also has a chap-style double front for durability, flame-resistant melamine button at waist, multiple tool and utility pockets, ankle-to-mid-thigh brass leg zippers with Nomex zipper tape and protective flaps and arc-resistant snap closures. NFPA 70E compliant. VPN: 100171.