Due to coated fabric these ponchos are 100% waterproof and windproof - a quality which is further enhanced by completely sealed seams. The ponchos have many different adjustment features to fit your body and they can easily be converted into a shelter or ground cloth. Additionally, the Backpacker Poncho has an extension flap on the back so your pack won't get wet as you hike. Nylon mini ripstop fabric coated with heavy duty polyurethane and DWR finish. 100% Waterproof and windproof. All seams are fully taped. Attached hood with visor and one-hand adjustable drawcords for face volume. Velcro tab at back of hood for visor adjustment. Zippered opening at neck for easy on and off. Durable nylon ribbon loops at corners for easy conversion to shelter or ground cloth. Heavy duty snaps along sides. Extension flap at back hem provides additional material to cover pack. Weight: 16 oz. Size: 52" x 92".