Koozies help to keep your drinks cold inside the can for a longer span. It is a fabric tailor-made to safeguard the can from frequent heat damage. This classy collapsible koozie can cooler is made of polyester with a vinyl foam backing and has a black interior foam. They are long-lasting and do not tear apart. You can easily fold them to carry in your pockets or bags and store them for later use. They are commonly used during picnics, summer festivals, pool parties, concerts, and even at weddings to hold champagnes and wine bottles.