Multi-Functional Heat & Cold Preservation:Our cooler bag is crafted with durable TPU material on the outside and eco-friendly PEVA on the inside, forming a 5-layer insulated structure. It keeps food and drinks cold for up to 20 hours and maintains warmth for 6-8 hours, perfect for taking lunch to work, traveling, or enjoying a picnic in the park IPX5 Leak-Proof & Waterproof Design:Unlike ordinary cooler bags, this insulated cooler bag features a hot-pressed airtight zipper, making it 100% waterproof and leak-proof. It prevents spills and leaks, making it ideal for hiking, camping, picnics, kayaking, or heading to the beach Portable & Practical Design:This compact ice cooler bag measures 28.9 x 25 x 22 cm and weighs only 1.36 pounds. It can hold up to 18 cans of beverages (330ml) and comes with a detachable shoulder strap and durable handle for comfortable carrying Easy Access & Convenient Storage:The cooler bag opens fully at the top for easy loading and cleaning. The exterior front pocket can store small items like keys, snacks, or a phone, making it the perfect travel cooler, beach cooler, drink cooler, ice cooler, beer cooler, lunch cooler, and camping cooler Ideal for Outdoor Enthusiasts:This soft-sided cooler bag features an elasticated drawstring front for a unique personal touch. Its lightweight design makes it suitable for all outdoor activities. Fill it with your favorite food and ice right away and enjoy your adventures