Hydro-Cool is a garment with the sole purpose of assisting to keep the body's core temperature at a comfortable level. The garment itself is a shirt made from a compression base-layer material utilizing moisture management technology. This wicking process draws perspiration away from the skin promoting rapid evaporation and optimizing body temperature regulation during extreme work or activity. These garments are equipped with pockets for the second piece of the system, the cold or heat packs...