Scientific fact: Quick Duck is as durable as sandstone duck, but it"s 30% lighter. This shirt jac is made of 9-ounce, 60% cotton/40% polyester Quick Duck. It features a Rain Defender durable water-repellent finish that keeps you going when Mother Nature is trying to slow you down. You"ll also like its attached jersey-lined three-piece hood, microfleece lining, and antique-finish copper snaps. For convenience, there are two chest pockets with flaps and snap closures, a left pocket flap with a pencil opening, and two-snap adjustable cuffs with extended plackets. 30% lighter than sandstone duck but just as durable 9-ounce, 60% cotton/40% polyester Quick Duck Rain Defender durable water-repellent Microfleece lining