Carhartt Men's Big & Tall Flame Resistant Midweight Canvas Bib Lined Overall 88% Cotton/12% Nylon Imported Machine Wash Midweight 8.5 ounce for canvas: 88% cotton/12% high-tenacity nylon 8.75-ounce for quilt lining: for mod acrylic batting quilted to twill face cloth High back with for elastic suspenders and for center-release buckles Chap-style double-front enhances durability