What are these? Hand washable, reusable bag. Perfect for carrying snacks or for use as wet bags for reusable wipes. What they are made from? Cotton, breathable and waterproof PUL. 6 x 6" with long cotton tie closure. Why are they fabulous? Keeps your sandwiches and snacks fresh! How to care for them... Wipe clean, wash cool, do not tumble dry.