Dickies Men's Insulated Coveralls TV239 bring are made from high performance duck and features a nylon taffeta quilted lining with 6 oz. polyester fill for added comfort and warmth. It's greatness doesn't end there. These coveralls also have double knees, which are less susceptible to excessive wear, and they feature nylon Scuffguards to prevent damage. They zip the whole way to the waist, and comfort your wrists and neck with knit storm cuffs and a corduroy collar that helps keep wamrth in. The heavy duty brass 2-way front zipper holds up to daily use and has large pulls that are easy to find and grab, even if you're wearing gloves. Side entry chest pockets and one inside pocket give you room to keep smaller, personal items, like your wallet and keys. Many coveralls can be restricting, but these ones have a bi-swing back that opens up shoulder movement and elastic waist inserts that keep things snug, but comfortable. There's even a rule pocket and hammer loop. These coveralls have a water repellant finish that must be re-treated after washing, but the heavy-duty fabric and build make these coveralls last through tons of rough work days.