- Material: The interior of the cooler backpack is constructed with food-grade PEVA and 8mm EPE foam, ensuring safety for direct food contact while meeting health standards. The exterior features durable 1680D high-density fabric, resistant to dirt, wear, and tear, making it ideal for outdoor use. - Practical Details: This picnic backpack includes a separate insulated pad constructed with upgraded heat-press seamless technology and a double-sealed zipper to prevent liquid leakage. The front has a removable DIY design, bottle openers on the shoulder straps, and a reflective strip for enhanced visibility. It comes with adjustable shoulder straps with buckles and a top elastic band for securing a picnic mat or hiking gear. - Multiple Pockets: Designed for convenience, this backpack has a main compartment that accommodates food for 3-5 people. It features two front pockets for cutlery, two side mesh pockets for drinks and umbrellas, and an internal top mesh pocket for tissues and other essentials. Additionally, there is a pocket on the back for mobile phones and valuables, providing organized storage for all your items. - Large Capacity: The cooler backpack enhances your outdoor experience, providing ample space for sandwiches, bento boxes, and fruits. For optimal cooling, it is recommended to use an ice pack, which helps maintain lower temperatures for extended periods. - Use Scenarios: Perfect for family picnics, beach outings, or hiking adventures, this versatile backpack allows you to carry everything you need in one organized, easy-to-access location. Whether you're enjoying a day at the park or a weekend camping trip, this cooler backpack is an essential companion for your outdoor activities.