Carry up to six cooled bottles or 12 cans with the super stylish, highly versatile BYOB Cooler, a waterproof, cooler insert which will immediately convert the Tenba Messenger Bag into a beverage carrier. High-end craftsmanship, the durable fabric has been heat-sealed to ensure maximum insulation all day, with zero drip, all’s you need to do is fill with ice. You don’t even need to remember the bottle opener as there’s one kindly attached.