Bullet Points:Efficient Cooling Performance: Designed with an integrating gel ice pad, it achieves sustained cooling efficiency, providing balanced and continuous cold treat that maintains optimal cooling performance throughout applicationEnhanced Heat Dissipation: Engineered with a honeycomb layer to enhance breathability, providing a cooling effect and enabling smooth circulation to avoid overheating or discomfortEasy to Use: No complicated tools required to use the Hat Ice Pack; simply fix it in your hat for instant cooling comfort, which saves time and effort, while being easy to apply and highly convenient for everyday useStorage Convenience: The Hat Ice Pack provides convenient storage as it can be folded and curled for easy space-saving placement, ensuring efficient organization without taking up valuable roomWidely Applicable: Whether cycling, hiking, climbing, or camping, the Hat Ice Pack delivers dependable cooling comfort, making it a must-have companion for outdoor enthusiasts seeking convenience and practicality in their gearDesigned for outdoor enthusiasts, the Hat Ice Pack delivers cooling support for activities such as hiking, cycling, camping, climbing, and running. Its foldable and portable nature ensures easy transport, while its compatibility with hats and helmets provides added convenience. The breathable design enhances user comfort, and its reusable quality makes it a dependable addition to your outdoor gear. Enjoy every trip with sustained cooling efficiency. Specification:Product size: about 18x18x0.1cm/7.09x7.09x0.04 inches12.5x12.5x0.1cm/4.92x4.92x0.04 inches Product color: Blue/whiteFunction: Cooling the bodyApplicable objects: Helmets, hats, etc. Product List:1 * Hat Ice Pack