【2025・Heatstroke・Instant Cooling】Stay cool and comfortable from head to toe even in the hot summer! This PCM cooling hat pad freezes naturally below 28°C and can be used repeatedly. The PCM cooling hat pad uses PCM technology to provide moderate coolness and maintain a comfortable temperature! 【Environmentally Friendly・Reusable】This cooling hat pad can be used simply by placing it inside a hat, effectively cooling the entire body and preventing heatstroke. If the product melts, cool it again using the same method. The cooling cap pack will solidify again. It's economical as you can reuse it just by cooling the ice pack in the refrigerator or freezer. Cooling time: Refrigerator: Cooling time is about 15 minutes, Cold water: Cooling time is about 20 minutes! (Note: If the temperature is very high, the cooling time needs to be longer.) 【Lightweight・Unisex・Natural Freezing】Size: 24cm. The ice cap mat fits inside various hats, and the snowflake shape stays in place inside the hat, making it difficult to fall out during exercise or work. When used with a hat, there is no change in appearance after wearing it, and it doesn't feel out of place. The hat weighs only 103 g. Special processing technology maintains high durability and abrasion resistance. The soft material is also gentle on the skin. It solidifies even in cold water, and the temperature becomes low, but it will not cause frostbite like ice. The product does not condense, is waterproof, does not absorb water, and is easy to wipe off sweat and dirt. 【Water Leakage Prevention・Waterproof・Easy to Store and Clean】Water will not leak from the surface of the product, and squeezing it will not damage the product. It is also waterproof and does not absorb sweat or dirt. Therefore, if you sweat or the surface gets dirty, you only need to wipe it with a wet wipe. Also, the area after folding is only half the original size, so it can be stored in a corner without taking up space. 【Wide Range of Uses・Active in Various Scenes】This cooling hat pod is suitable for agriculture, construction sites, fishing, golf, housework, gardening. 【Design Registered】Hat Cooling PCM Ice Cap Mat・2025 New Release Head Cooling Heatstroke Prevention Exclusive Patent Reuse Cooling Goods Head Cooling Cooling Cold Ice Helmet Heatstroke Prevention Ice Pack Fever Prevention Hat, Bicycle Helmet Ice Cap Mat, Hiking/Camping/Mountaineering/Travel/Commuting Japanese Instruction Manual