Insulated Cooler Backpack?30 Can Backpack Cooler Leak Proof?Insulated Soft ?High quality insulation?The backpack cooler adopts thickened 8mm foam for heat insulation, and is equipped with advanced silver PEVA seals, which can block ultraviolet rays and keep drinks and food cool. ?Large Capacity?Measures 17''x11''x7"( H x L x W)and can hold up to 30 cans (330ml),roomy enough to pack meals, beer, snacks, tall beverages, towels, cell phone and all your other necessities. Perfect insulated backpack for lunch cooler, hiking, camping, beach, road trip, outdoors etc. ?Versatile?Besides used as excellent lunch cooler bag, it is also a perfect lightweight gear for hiking backpack, camping backpack, fishing bag, hunting backpack, travel backpack, trail, cycling, overnight stay and other outdoor activities. Suitable for both men and women. ?Leak-proof Durable?Our coolers are leak-proof with a seamless hot pressing process.The zipper is not leak-proof, please be careful not to tip over when using. ?Meet All You Needs?This stylish backpack features a large main storage compartment, 2 side mesh pockets, 2 handles, a large front zippered pocket, and a beer bottle opener. In addition, ergonomically designed padded shoulder straps greatly alleviate shoulder pressure, making the journey more comfortable.