This is a multi-functional and practical bag. It can be carried on one shoulder, slung across the body, or held by hand, meeting various carrying needs. In terms of design, it ingeniously combines the practicality of a lunch box with the delicacy of a cosmetic and toiletry bag. Its unique design allows it to adapt to different usage scenarios. Whether you're carrying your lunch to work on a daily basis, packing toiletries for a trip, or using it to hold lunch boxes during a picnic, it can handle the tasks perfectly. In terms of usage, it has an excellent heat preservation function, which can effectively keep the food warm, enabling you to enjoy hot meals at any time. When used as a cosmetic and toiletry bag, it can well organize cosmetics like lipsticks and toiletries, being convenient and tidy. When used as a picnic bag, it can serve as a fresh-keeping cooler bag, ensuring that food and drinks stay fresh outdoors. It is a well-designed and versatile practical bag.