Thank you for visiting our shop from among many others! White/Pink (Size S) 【Newly Designed Structure & NASA-Developed PCM Material】: With the newly introduced structure, heat can be absorbed efficiently for cooling, keeping your neck and body comfortable. The 3-layer structure significantly enhances the cooling sensation and duration compared to the conventional single-layer design. It freezes naturally below 18°C (64°F) for quick cool-down, making it effective against heatstroke. Using PCM material, it automatically freezes in response to surrounding temperature changes, achieving a long-lasting cooling effect. 【Reusable & Easy to Use】: Made of durable materials, it is designed to resist degradation even with repeated use. This allows for long-term use. No charging is required, making it an environmentally friendly eco-friendly product. It can be cooled in a refrigerator or freezer and is easy to use. 【Freezes Automatically Below 18°C & Long-Lasting】: It freezes automatically in temperatures below 18°C (64°F) and maintains its cooling effect for a long time. Compared to conventional ice packs, it cools faster and has a longer-lasting cooling effect. Therefore, it is ideal for use on hot days, outdoor activities, sports, and events. Furthermore, due to the increased amount and concentration of PCM material, the cooling effect after freezing is more stable and lasts longer than conventional products. 【Easy to Put On & Take Off, No Condensation & Fluorescent Design】: The U-shaped neckband design allows you to wear it around your neck and shoulders without putting any strain on them. The curved, stylish design maintains a fashionable look while wearing it. Unlike regular ice packs, this product does not have a large temperature difference, which suppresses condensation due to surrounding humidity. Therefore, the surface is less likely to condense while wearing it around your neck, allowing you to enjoy coolness comfortably. In addition, the fluorescent design provides high visibility even in dark places, ensuring safety. 【Wide Range of Uses】: You can choose from a wide range of options depending on your preferences and needs. It is useful in various situations, such as sports, outdoor work, commuting to school, fishing, housework, hot flash対策 (hot flash measures), activities in spaces without air conditioning, after bathing, and when you want to refresh yourself. Opened, slightly sticky. #CoolRing #NeckCooler #CoolNeck #CoolingGoods #IceRing #HeatstrokePrevention