The Australian design registered Adventurers Cool Hat provides ultimate cooling and protection from the sun.
This unique hat has a series of cool tubes, filled with cooling crystals, in the back flap. By cooling the carotid artery that runs to your brain up the back of your neck, your body cools down. Immerse the flap in water and these cool tubes are activated. It is like having a series of vertical cool tubes running right down the back of your neck.