An insulated outer case is shaped like a clam shell, preferably with a fabric hinge. In a top half is an ice bag or gel pack. In a lower half is an optional pocket holding a long securing wrap and anchored short straps for encircling a limb. In a closed mode the ice bag is surrounded by two insulated clam shell halves secured together by a zipper. In an open mode the straps can be adjusted and the bag filled with ice (or water to be heated). Then the halves are reversed and zippered into the reverse mode for application. A combo pack embodiment adds a drinking water bladder to the bottom half.
