Great Material: The outer layer of the cooler bag is made of high-quality thick cationic fabric, which is anti-wrinkle, wear-resistant, and washable. The inner material is aluminum foil, which has good thermal and cold performance. Waterproof and leak-proof, easy to clean and convenient for daily use. Lightweight & Portable Design: Our cooler lunch bag is lightweight, with a thick handle that won't put pressure on your hands, and neatly stitched edges, making it comfortable to carry without hurting your hands. It can keep food or drinks fresh/cold/warm. No matter where you are, the picnic cooler bag allows you to enjoy delicious and fresh meals. Large Opening Design: The large opening design of the insulated cooler bag makes it easy to take items. The bottom of the picnic bag is designed with a composite bottom plate, which can achieve good balance, and sideways placed drinks will not leak. Heavy-duty double zippers provide extra durability and security. Large Capacity Design: The maximum capacity of the cooler bag is 15L, which can perfectly accommodate lunch boxes, snacks, fruits, water bottles and other items. The built-in transparent mesh bag can be used to place chopsticks, spoons and other items. The front pocket design can store mobile phones, keys and other items; the side double pocket design can be used to store water cups. Multi-scenario Application: Suitable for men and women, suitable for work, office, school, picnics, travel, camping, hiking, fishing, barbecue or any outdoor activities. The cooler bags are used to preserve vegetables and fruits, and are suitable for accommodating ready-made meals, meat, quick-frozen foods, drinks, etc.