Amazon.com : Scothen Backpack Cooler with Double Decker & 12 。?Scratch Resistant Ripstop/Nylon Surface + Waterproof PU Coating + Waterproof Zipper+ 8mm High-Density Foam Insulation + Leakproof Hot-pressing PEVA Liner ?❄️Keeps Drinks Cool for Up to 8 Hours: Comes with 12 self-absorbent ice packs, Scothen ice chest backpack keeps your beverages and food at the perfect temperature throughout the day. The inside is made of non-toxic & harmless PEVA material and a thick layer of waterproof insulated foam, which will not spoil the taste of food. What\'s more, our ice packs are reusable that means you can not only save money, but also keep the contents inside fresh for 8 hours every time. ??Hot & Cold Separation Design: Our cooler backpack with double decker is design for women. A bottom compartment for cold, fresh contents that can also house ice packs, and an upper compartment for warm, dry goods and lunch. We recommend storing hot and cold foods and drinks separately for better results. It is a must-have backpack cooler for women hiking! It can also be used as a breastmilk cooler bag to keep your drinks ? cold and keep your breast bottle ? warm! ??Leak Proof & Waterproof: Our waterproof cooler tote works effectively at keeping liquid contents at ideal temperature without leaking.The Eva liner combined with SBS waterproof zipper+ waterproof nylon+ PU coating, which means excellent waterproof effect, you can confidently take it to the beach.The upper layer design for hot,leak-proof 80%, the lower layer design for cold, leak-proof 1OO%.