Abstract: A device useful for delivering a temperature altering regimen to a specific and defined location on an animal's body, and thus altering the temperature of an animal's body, or defined area thereof. It is desirable to alter the temperature of an animal's body for a variety of reasons, including: maintaining a desirable basal body temperature in an extreme climate; maintaining basal body temperature to treat an illness affecting said temperature; providing a temperature greater or lesser than basal temperature to muscle groups and/or joints to help with swelling and aching following a strenuous workout; providing a temperature greater or lesser than basal temperature to joints to assist with pain associated with swelling due to arthritis; and to lower the temperature of a body following a strenuous workout.