The Hoco Bottle, or the “Hold-Cold” Bottle, is a belt-worn bottle that has palm cooling capabilities. The concept of Palm Cooling directly combats the risk of hyperthermia as it cools down the heat dissipating vessels on the palms, lowering the core body temperature to safer levels. This means that
the Hoco Bottle can enable marathon athletes to train in high temperature situations with a lower risk of heat damage – a necessity in the future of
outdoor sports.