Lifewit Backpack Cooler Waterproof Insulated Soft Lunch Cooler Backpack Lightweight Leakproof Cooler Bag for Men Women Adults for Work Picnics Beach Camping Travel Outdoor ActivitiesLarge Capacity: With dimensions of 12 x 7 x 16 inches, the maximum capacity of the cooler backpack is 22L, and is spacious enough to store 30 cans of 330ml coke, is roomy enough to pack meals, beer, snacks, tall beverages, towels, cell phone and all your other necessities. Excellent Insulation: Using thickened PEVA material and built in 7mm thick layer of insulated foam, keep your food cold hot fresh for up to 12 hours. We also recommend using ice