Amazon.com: Maelstrom Backpack Cooler,Soft Lightweight 。?Leak-proof & Insulated：High-density insulation material and leak-proof liner inside of the insulated cooler backpack work together to make sure anti-leaking and keep food hot / cold for 16 hours. The interior lining is made of high quality material and easy to clean. You can drink cold beer,eat fresh snacks or fruit with friends or family anytime. ?Spacious and Organized: The Maelstrom insulated backpack features a large capacity and multiple compartments, measuring 12.87”x 8.97”x 18.72”（LxWxH）. This Leak-proof backpack cooler can hold up to 35 cans (32L).With a roomy zipper main compartment, top zipper pocket, front zipper pocket, front elastic rope net, front cutlery storage bag, 2 mesh side pockets, hidden back zipper pocket, and a shoulder strap card pocket, it provides convenient storage for all your needs. ?Ergonomic & Comfortable Design: Thicker padded back with ergonomic breathable design paired with adjustable,breathable and padded S shoulder straps help to reduce fatigue during a long day of trip. The backpack ice chest comes with a handle,which is labor-saving and durable. The adjustable chest buckle works perfectly to distribute the pack’s weight and keep it steady and centered. And chest buckle designed as a survival whistle for quick and easy use in case of emergency. ?Unique Function Design: Two condiment bottles can be placed on the top of the tableware storage bag for easy access. The shoulder strap has a stainless steel bottle opener for easy