COOLS INSTANTLY - The Women's Chilly Pro Performance Cooling Cap provides instant and lasting cooling power CHEMICAL FREE and UPF +50 SUN PROTECTION - machine washable and reusable with permanent chemical-free fabric technology and sun protection that will never wash out FEATURES - Structured brim for added sun protection, vented for additional airflow, Chilly Pro cooling fabric, adjustable for customized fit and designed for a ponytail USES - Perfect for warm weather activities such as fishing, running, gardening, golf. Simply wet the hat with water or perspiration to activate instant cooling that lasts for hours SINCE 1996 frogg toggs has endeavored to provide the world's best rainwear, waders, cooling products, footwear, and accessories at the best possible prices