The Arctic Adapter was designed to enable use with 8oz cans in your favorite Hopsulator Slim. Each adapter is filled with a non-toxic, freezable gel designed to keep your favorite drinks extra cold until the very last sip. Simply throw it in the freeze, drop it in the slim and slide in your favorite drink for the ultimate drinking experience. Note: The adapter can be used at room temperature and the Slim will still keep your drinks ice cold.