Insulation systemThe thick insulation wall can form a fully insulated bag, which can keep food and drinks cool or warm for several hours. Quality materialsThe lunch bag is designed with high-quality aluminum foil insulation lining (excluding BPA), which is non-toxic and safe to food, and can always keep food fresh (hot and cold). In addition, it is easy to clean. Waterproof and Moisture-proof Lunch Bag Equipped with environmentally-friendly waterproof aluminum foil, leak-proof and insulated, suitable for storing all kinds of food, can easily carry more food and improve your daily life. Multifunctional The lunch bag can be used not only as a lunch bag, but also as a baby bag, a make-up bag, a shopping bag and a storage bag. Ideal for work meals, picnic meals, outdoor barbecues, diet management or medicine storage, it can also be a sundries bag or shopping bag. Convenient to carry Lightweight and portable. It is easy to fold for storage. It's best to have a lunch tote to carry some lunch items, which can then be folded into your regular bag instead of having to carry a bulky empty lunch bag with you after lunch! Ideal for travel, picnic, school or office, as a lunch box bag. If you are not 100% satisfied, you can replace or refund-if you have any questions, please contact us first and we will solve your problem as so