DuPont Paper Material: The lunch bag is made of high-quality DuPont paper, which is durable and eco-friendly.2. Waterproof and Insulated: The lunch bag is designed to be waterproof and insulated, ensuring that your food stays fresh and at the right temperature. Aluminum Foil Lining: The aluminum foil lining helps to keep your food at the perfect temperature and prevents any leaks or spills. Portable and Convenient: The lunch bag is designed to be portable and convenient, allowing you to easily carry it with you wherever you go. Ideal for Office Workers: The lunch bag is perfect for office workers who want to bring their own lunch to work and save money on eating out. Magic Tape Seal: The lunch bag features a magic tape seal which makes it easy to open and close, while also keeping your food fresh and secure. Vintage and Rugged Style: The lunch bag has a vintage and rugged style, with a distressed and worn look that adds to its charm.