Abstract: A head cooling apparatus is provided for cooling a head of a user. The head cooling apparatus includes a portable pump assembly having a foldable heat exchanger formed into a pocket to substantially receive a replaceable cooling source, the foldable heat exchanger including a first exchanger half including a channel, a center portion connected to the first exchanger half, and a second exchanger half connected to the center portion. The head cooling apparatus also includes a headgear assembly in fluid communication with the portable pump assembly, the headgear assembly configured to be worn adjacent a user's head, the headgear assembly including a conformable pouch configured to be positioned adjacent a user's head. The first exchanger half and second exchanger half are foldable along the center portion such that a replaceable cooling source is substantially sandwiched between the first exchanger half and second exchanger half.