Lunch box, back-to-school insulated lunch bag, expandable double-layer cooler bag, lightweight leak-proof tote bag with side paper pockets, suitable for both men and women Highlights Product Selling Points: 1. Portable and Convenient: This lunch bag is designed to be portable, making it perfect for picnics or carrying your lunch to work. It can also be used as a storage bag. The waterproof feature makes it suitable for preserving fruits. 2. High-Quality Material: The lunch bag is made of high-quality polyester fabric, ensuring that it is waterproof, wear-resistant, and highly durable. 3. Effective Heat Preservation: The inside of the lunch bag is lined with a heat-insulating aluminum film. This material not only provides excellent heat preservation but is also waterproof and oil-proof. 4. Spacious Design: This lunch bag has a large capacity, allowing you to carry all the essential items you need for the day. 5. User-Friendly Design: The lunch bag features a widened and thickened handle, as well as a detachable shoulder strap. This design makes it easy to carry and saves time and effort when going out.