Tough Duck Men's Insulated Overall Bib Fabric: 12 oz 100% cotton Tough DuckTM / Lining: quilted 6 oz polyester insulation Imported Seam-sealed waterproof seat Waterproof double knees. Exclusive double front legs. Heavy-duty 2-way leg zippers from ankle to hip Elasticized adjustable shoulder straps. Chest pocket with pencil slot Loss-proof chest pocket for cell phone. Elasticized back waist. Turned under hem allos for 3" tall extension