Feature: 1. Superior Durability and Protection: Our picnic backpack is made of high-density, water-resistant, stain-resistant 1680D Oxford fabric, long-lasting durability and protection. The exterior is easy to clean, making maintenance a breeze. 2. Food safety and thermal insulation: The inner lining is made of food-safe PEVA material and filled with 8mm EPE foam to provide a safe environment for your food. Using individual potholders, you can keep hot and cold food separate, or attach them to the bottom of your backpack to maintain their shape. 3. Leak-proof design for worry-free travel: The ice packs in our backpacks feature seamless heat-pressing technology, eliminating any worries about leaks or spills inside the bag. You can travel with confidence without worrying about damaging your belongings. 4. Extended cooling capacity: Just add ice packs to the freezer and your drinks will stay refreshing and cool for at least 12 hours or more, even in hot weather. Enjoy ice-cold drinks and keep them warm during outdoor activities. 5. Versatile and Practical: Not only does our backpack keep your food fresh and insulated, it also provides ample storage space for other essentials. Equipped with multiple compartments and pockets, you can conveniently organize picnic supplies, cutlery, napkins, and more to for ensure a stress-free outdoor experience.   Specification:  Product name: Insulated backpack Capacity: 23L Size: 29*19*42cm/11.42*7.48*16.54 inches Material: Oxford cloth Color: gray, black, navy blue (optional)   Package Content： 1*  Insulated backpack   Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.2. Please allow slight manual measurement deviation for the data.   Assembled Product Dimensions (L x W x H): 3.94 x 3.94 x 0.79 Inches