Abstract: A beverage insulator configurable to insulate a bottle in a bottle configuration, and a can in a can configuration, is disclosed. The beverage insulator includes a body for receiving and insulating a bottle or a can, and one or more foldable members to insulate a bottle neck in the bottle configuration, and a can in the can configuration. The can configuration allows a user to comfortably drink from the can without the foldable members interfering with the user's normal drinking action. The bottle configuration substantially insulates a bottle from a bottom of the bottle to a neck of the bottle.