SAFE AND ECO-FRIENDLY MATERIALS: These reusable PEVA zipper bags are reusable, PVC and BPA free, reusable, biodegradable and recyclable. Plus, they're recyclable, which benefits our planet and environment, so use reusable bags whenever possible. Waterproof and Sealed Well: This reusable silicone bag is leak-proof and waterproof, and we have improved the safety of silicone bags to better keep food fresh and prevent unpleasant odors. The sandwich bag's zipper and waterproof material seal well, so you don't have to worry about these perfect storage bags even if you're storing liquid food. Design at the bottom FOOD STORAGE BAG: Our food storage bags feature an innovative bottom design that not only fits easily on the table, but also allows for easier and easier placement. So you can store more food and save more space in your refrigerator. Plus, these shopping bags are see-through so you can quickly find the items you need. Easy to use and clean: our silicone freezer bags that open and close quickly and in which food or other objects are easily stored, hand washing recommended, as the zippers can become deformed in the dishwasher. You can wash the bags by hand in cold water or at room temperature or clean them with a simple dish brush and put them on the glass to dry them. Lifetime quality assurance and service: the reusable silicone bag with zipper can be easily stored in the refrigerator, but withstands temperatures up to 70C and is not suitable for the microwave, oven or dishwasher. If in doubt, please contact us and we will get back to you within 24 hours.