Large 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 packs to keep extra cold. Drink cold beer and eat fresh snacks or fruits anywhere anytime, with your friends or family. No Leaking Problem: Our cooler backpack is made of hot-pressed upgraded leak-proof PEVA materials combined with waterproof zippers, which work effectively at keeping your liquid contents at their ideal temperature and taking it anywhere you go without the worry of leaking. Multiple Pockets: Our insulated cooler bag comes with 1 main compartment for drinks or food, and 1 front pocket to hold items like phone, wallet, and keys. 2 mesh side pockets hold wine bottles. And 1 zipper pocket on the lid to organize small items. Plus, a beer opener on the strap for added convenience. Versatile Design: Besides using as an excellent insulated lunch backpack, it is also a perfect lightweight gear for beach cooler backpack, hiking backpack, camping backpack, fishing bag, travel backpack, trail, cycling, overnight stay, and other outdoor activities. Suitable for both men and women.