We're bringing the party to the people. The Party Block Bag has plenty of room for up to 18 cans, or a 12 pack and some ice. It's burly, with 1" foam insulation and designed with a wide stance to resist tipping over. The 4 koozies attach to the outside of the cooler to keep your beverage upright, or they can attach to the removable carrying strap, turning it into a hands-free hydration belt. And the waterproof interior is fully welded, so all that ice doesn't become a puddle in your backseat on the way home from the beach or mountain.