Tough enough to do the job, this work jacket layers easily over shirts and jackets so it's great for mild or harsh weather.. 12-ounce, 100% cotton duck cloth. 100% nylon dyed-to-match lining with 6-ounce polyfill insulation. Hood with dyed-to-match drawcord. Rib knit cuffs and waistband. Front hand warmer pockets. Interior pocket. Port Pockets for easy embroidery access