The Neoprene Collapsible Coolie is constructed out of high quality tightly knit neoprene. This high-tech coosie is made of the same material as a diver’s wetsuit, so you know it has the best insulation possible while still being thin and portable. This model has both stitched and glued seams, making this coolie ultra-durable. This model was designed for a standard 12oz can, but can also be stretched to comfortably fit a standard bottle. It is foldable so it can neatly fit in your pocket, handbag, even a large wallet! Wherever you choose to store this super beverage holder, know that it will last for many years after the event is over, allowing you to hold on (literally) to the great memories you had. Neoprene can easily be washed and reused again and again ensuring constant and lasting cool beverage satisfaction.