Key benefits Sustained cooling: Phase change material (PCM) provides a physical cooling effect to help keep your head comfortable during extended wear. Reliable performance: Delivers approximately two hours of effective cooling while preserving protection and functionality during demanding tasks. Comfortable fit: Ergonomically shaped insert conforms to the head for long-wear comfort and ease of use. Versatile use: Designed for a range of activities without compromising safety or performance. What this product does Uses PCM technology to absorb and regulate heat at the contact surface, producing a steady cooling effect that lasts around two hours per charge/activation cycle. Acts as an insert that sits against the head, improving comfort and thermal management while you work or play. Key attributes Function: Physical cooling insert based on PCM technology. Performance: Lasting cooling effect for up to two hours. Design: Ergonomic shape for comfortable, long-duration wear. Compatibility: Intended to be used as a head insert and to integrate with compatible headwear or helmet systems without reducing protective function. Use environments: Suitable for both outdoor and indoor demanding tasks where thermal comfort is needed. Practical use scenarios Cycling: Helps manage head temperature on long rides in warm conditions, supporting comfort without interfering with protective equipment. Camping and fishing: Keeps you cooler during daytime activities or extended periods outdoors. Work or active outdoor tasks: Provides reliable cooling for jobs or activities that require prolonged wear of headgear in warm environments. Why customers choose this product Provides a measurable cooling benefit through proven PCM technology. Balances thermal comfort with continued protection and functionality for extended wear. Simple, ergonomic design that integrates into headwear setups used for recreation and demanding tasks.