TrailHeads Men&rsquo;s Power Cap - 4-way stretch skull cap 53% polyester; 40% nylon; 7% spandex ENHANCED VISIBILITY - Stylish, reflective accents on the sides help you to be seen and be safe during daybreak and dusk running workouts. WATER RESISTANT - Fabric resists water to help keep you warm, dry and protected from the winter elements during cold weather workouts. This lightweight but warm beanie easily stows away in a pocket. Machine washable. One size fits most. 4 - WAY STRETCH - Highly breathable polyester / spandex blend fabric delivers snug fitting performance. Brushed finish feels great against your skin, ensures a comfortable fit and has moisture wicking technology to pull sweat away from your skin. HELMET FRIENDLY - Although it is often worn independently, the beanie can also serve as a helmet liner for skiing, snowboarding or biking on days when you need an extra layer of insulation. TRAIL TESTED GUARANTEE - Your complete satisfaction is our goal. If youre not happy with your purchase, let us know and we'll provide a replacement or refund - no fine print, no time limit. Nothing but our commitment to do what it takes to satisfy our customers.