Runners need more from their hats than just keeping the sun out of their eyes. These are also light, stretchy, and breathable, with a quick-drying sweatband. Every runner needs a couple of these. Lightweight, durable woven material. UA Siro sweatband gives greater stretch & recovery, an ultra-soft feel & more breathable performance. Low-profile hook & loop closure to avoid hair snagging with elastic layer underneath for added stretch. Main body fabric contains at least 90% recycled polyester, excluding trims & embellishments. Reflective logo. 100% Polyester.