PackIt Freezable Wine Cooler Bag with Zip Closure, Solid Black Packit coolers are designed to keep contents cooler, longer: up to 10-hour Coolers feature a patented eco-gel permanently built into liner, no need for ice or gel packs, simply store your packit directly in the freezer Single bottle cooler is designed to keep one bottle of wine or champagne cool on the go; shoulder strap included PackIt coolers fold compactly for storage in your freezer until you are ready to use them Pvc/lead free, non-toxic, earth safe and re-usable; hand wash interior and exterior, not intended for dishwasher or washing machine use