UA Storm technology repels water without compromising breathability.Durable woven fabric with UPF 50+ protects the skin from the sun's harmful rays.Laser perforation on the side panels for better breathability.The Iso-Chill fabric dissipates body heat and gives you a pleasant cooling feeling.Adjustable snapback fastening.Detail of the string.Water-repellent treatment without fluorine.Odor control technology minimizes odor.