- Automatic freezing: The P-CM cooling hat pad provides natural, continuous relief with no electricity required. It automatically freezes to below 28°C for a cool touch when worn. - Heat stress relief: Delivers instant relief and helps prevent heat damage. Supports mental well-being and performance in hot environments, reducing summer-related symptoms. - Cooling comfort: Made of soft TPU material, this ice pack insert is skin-friendly and non-irritating. It offers a comfortable wearing experience and helps prevent frostbite damage. - Secure fit and stability: Designed for an active lifestyle. The insert fits snugly with a sturdy buckle to prevent slipping during movement. Use scenarios: - Outdoor work in hot conditions (construction, delivery, farming) to minimize heat stress during long shifts. - Sports and outdoor activities (running, cycling, hiking) to stay cool and maintain performance. - Travel, commuting, or daily wear in hot climates to keep the head area comfortable and protected.