Abstract: The present device generally relates to an adjustable heating/cooling pack. The heating/cooling pack is especially suitable for use on an injured or sore leg or arm of a user. The heating/cooling pack may first be placed in a freezer or refrigerator (or microwave if heat is desired) and removed prior to use. The device has a securing means which allows it to remain in a rolled up tube configuration having a closed environment prior to use. As a result, the device remains cool or warm for a longer period of time than other heating/cooling packs. In addition, items may be stored and carried inside the device while the device is in the closed configuration (third position).