Hopsulator duo is the only triple insulated can cooler that doubles as a 12 oz tumbler. The most functional drinking accessory on the planet. The patented 2-in-1 DUO fits 12oz cans, 12oz Coors cans, and can be used as a tumbler. Features push-lock technology for easy insertion and removal of your favorite beverages. 20x colder than a standard neoprene sleeve