A deep-dive feature series on HPI’s standout items. In our first installment, we explore the high-performance water-cooled "Cool Vest," powered by JAXA technology. Discover the secrets behind its incredible cooling efficiency and superior fit that are set to revolutionize the summer racing scene. The HPI Cool Vest offers an advanced solution for heat management. By utilizing JAXA-inspired technology, the HPI Cool Vest ensures consistent cooling through its dedicated water cir