Designed to endure windy and rainy conditions while remaining securely in position, the KOLLUSION^™ SUN BLADE HAT is made from KÜHL’s exclusive Dynawax^™ fabric. A synthetic wax and polyurethane coating deliver protection from the elements on blustery days. Our innovative headband is moisture activated to actually lower your skin temperature. Strategically placed vents increase breathability without compromising (UPF 50) sun protection.