1. Durability ProtectionCrafted from density, waterresistant, and dirtresistant 1680D Oxford fabric, this picnic backpack guarantees durability and protection. Its exterior is effortless to clean, ensuring hassle maintenance. 2. Food Thermal InsulationThe interior is lined with foodgrade PEVA material and padded with 8mm EPE foam, creating a secure environment for food storage. Separate insulated compartments keep hot and cold items segregated while maintaining their ideal temperature. 3. LeakProof Design for Stress TravelThe backpack's ice packs utilize seamless heatsealing technology, eliminating concerns about leaks or spills inside the bag. Travel with peace of mind, knowing your belongings remain protected. 4. Extended Cooling PerformanceSimply freeze the ice packs, and your beverages will stay refreshingly chilled for at least 12 hours—or even longer—even in scorching weather. Enjoy icy drinks and keep meals at the temperature during outdoor adventures.