1. Durability and Protection: Made from density, waterresistant, and dirtresistant 1680D Oxford fabric, this picnic backpack offers durability and protection. The exterior is easy to clean and built to last. 2. Food and InsulationThe inner lining of the backpack is made of foodgrade PEVA material and filled with 8mm EPE foam, providing an environment for food. Keep hot and cold dishes separate with individual pot holders, or attach them to the bottom of the backpack for added convenience. 3. LeakProof Design for Worry Travel: With seamless hotpress technology, the ice packs in our backpack prevent leaks or spills. Travel confidently without fear of damaging your belongings. 4. Enhanced Cooling CapacityThis backpack can keep drinks refreshingly cool for at least 12 hours with the ability to add ice packs, even in hot weather. Enjoy icecold beverages during outdoor activities.