Aqua Water Inner Cap

Gently cools the head during summer. Perfect for the inner lining of helmets and hats! Recommended for heat prevention: "Aqua Water Inner Cap."

【What is the Aqua Water Inner Cap】 San-ei Electronics sells the "Aqua Water Inner Cap," a heat countermeasure product designed to protect the safety of those working in hot environments. This product is a cap that achieves a cooling effect using only the power of water, without the need for batteries or ice packs. By using it as an inner layer for helmets or hats, it gently cools the head with the power of water during the summer. To use it, simply pour about 120ml of water into the inlet, spread the water evenly with your hands, and attach it to your helmet or hat. Initially, the coldness of the water cools the head, and even after the water reaches room temperature, it reduces the risk of heatstroke through the heat absorption effect utilizing evaporative cooling (the phenomenon where heat is absorbed when water evaporates) for an extended period. There is no need for frequent replacements like with ice packs, and it is an environmentally friendly product that does not use batteries. Since it does not require electricity or fans, it can be safely used in explosion-proof areas or in work sites where noise and dust are concerns. Developed in collaboration with the ATRENA brand of hat manufacturer Shigematsu, it achieves a silhouette that fits perfectly on the head. Weighing only 50g when not filled with water, it can be worn comfortably without any sense of discomfort.

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