A. This multi-functional bag is a good companion for your outdoor trips. It has a large-capacity design and can easily hold many items. Whether it's the food for an outdoor picnic, the lunch for daily work, or the small essentials for a trip, they can all be neatly stored inside. B. It features a double-layer structure and has good thermal insulation. It can keep the temperature of items for a long time, allowing food to always stay at a suitable taste state and achieve constant-temperature preservation. Even if you spend a whole day outdoors, your lunch will still be warm and delicious. C. It has excellent waterproof performance. Whether it's a sudden light rain or accidentally splashed water, you don't need to worry about your items getting wet. It can provide reliable protection for your belongings. D. It can be carried by hand or on one shoulder, with flexible carrying methods to meet your usage needs in different scenarios. Whether you're strolling on a country path or walking through a busy city street, you can easily enjoy your journey. This bag is an ideal choice for outdoor picnics, daily commuting, or trips.