Made of 1/8" (thickness) neoprene (wet suit) material. Built to fit 12 oz. and 11.oz slim cans from popular brands of hard seltzer, energy drinks and beer. Will also fit a 12 oz. long neck beer bottle. Collapsible bottom, folds flat for easy storage. Helps prevent surface damage by limiting condensation. Keeps drinks colder longer and hands dry. Graphic is a durable, high quality heat transfer; Printed on 1 side.