Amazon.com : iROCKER Outdoor Backpack Cooler or Dry Bag, Insulated, Leakproof, Soft and Collapsible with Padded Straps and Waist Belt, 30L Capacity fits up to 24 cans or 18 Bottles - 18"-24"
Blue Ice Kume 32L Pack - Ski
Amazon.com : Scothen Cooler Backpack with 12 Ice Packs - Keeps 54 Cans Cold for Up to 24 Hours - Waterproof & Leak Proof Insulated Backpack Cooler -Lightweight Bookbag Cooler for Men