Durable cooling solution - Equipped with a robust gel ice pad that provides long-lasting cooling and maintains an even temperature reduction for efficient cooling over time. Optimal ventilation layer - Features a breathable honeycomb layer for refreshing comfort, promoting smooth heat dissipation and an air-permeable structure that helps prevent clogging during use. Easy to fix - Place the hat ice pack directly into your hat without any tools, offering a quick and simple way to beat heat. Storage convenience - The hat ice pack can be folded and rolled for compact storage, helping you organize efficiently without using valuable space. Use scenarios - Outdoor work or sports on hot days: insert into a hat to maintain cooling comfort during extended activity. - Commuting or travel in warm climates: keep your head cool without extra equipment. - Outdoor events or festivals: stay comfortable while standing or walking in the sun.