Keep a cool head and stay seen. Designed specifically for running, this unstructured cap fits to your head and offers reflective properties, all while utilizing ArmourVent(TM) technology to wick away moisture and improve ventilation.. . UA Free Fit features a pre-curved visor & unstructured front panels that conform to your head for a sleek, low profile fit. ArmourVent??? Technology delivers true breathability in a light, stretchy, durable & fast-drying fabric. Reflective taping & logo for increased visibility & safety on low-light runs. Adjustable hook & loop closure. 100% Polyester. Imported.