892400 Hearing Premium Color: Line Cross White Size: M List Price: 3280 yen Even when the surrounding temperature rises, it stops at a certain temperature range, absorbs heat, and maintains a constant temperature. Condensation due to rapid temperature changes does not occur. It doesn't get too cold, so it's safe for people with sensitive skin, women, and children. ≪Features≫ - Recommended for heatstroke prevention as it cools the neck. - Can be used all year round and is economical as it can be reused. - The cooling material developed by NASA is safe and secure, and plant-based. - Uses a special material that changes from liquid to solid when cooled, and can be solidified by cooling at temperatures below 22°C or in water. - The neck area, which is prone to melting, is made extra thick (3cm diameter) to enhance the cooling sensation and extend the cooling time. - Uses a solid base color that does not break in the middle, and a reverse side print that does not transfer color to clothes or skin. - Equipped with a window to check the internal state. ≪Specifications≫ Cooling Time: Ice water / approx. 20 minutes, Refrigerator / approx. 45 minutes Usage Guideline: Approx. 2-3 hours (when ambient temperature is 25-35°C) ≪Uses≫ - For heatstroke prevention in summer - Work sites, agricultural work - Sleepless nights or when you have a fever - Studying, desk work, business scenes - Concert venues, commuting, driving - Camping, fishing, and other leisure activities - Sports viewing, sports days, and other events - Sports cool-downs, etc. ≪Materials≫ TPU (Thermoplastic Polyurethane) P.C.M (Cooling Material) Please note that the outer box will be removed for compact shipping.