Puffin Drinkwear The Puffy Vest 12 oz Can Cooler. The Puffy Vest is the perfect drinkwear for shoulder season. No arms, no problem. This can sleeve is all about core temp. For true outdoorsmen and women—and everybody else too! Fits well: 12 oz cans. Premium liner has a more durable, better feel. Waterproof zipper keeps the can sweat off your hands. Rubberized base for more stability. Non-slip. Imported.