These flame resistant duck bib overalls are unlined for comfort in warm weather. Comprised of 13-ounce, flame-resistant 100% cotton duck. Features include 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, multiple tool and utility pockets, hammer loop, ankle-to-mid-thigh brass leg zippers with Nomex zipper tape, flame-resistant melamine button at waist and protective flaps and arc-resistant snap closures.