This large capacity outdoor waterproof picnic thermal backpack is the ultimate companion for all your outdoor adventures. Whether you are planning a picnic, a beach day, or a camping trip, this adaptable bag ensures you're well-prepared. Expertly crafted with 500D PVC on the exterior, 2.5cm thick EPE insulation in the middle, and PEVA on the interior, it offers unparalleled insulation. The ergonomic backpack design ensures comfortable carrying, while the handheld option adds convenience for any journey. Keep your food and beverages perfectly chilled with this insulated lunch bag that also functions as a cooler. Stay organized and ready for any outdoor dining experience with this comprehensive solution.