Of course, this visor keeps the sun out of your eyes during your morning fitness routine. But, in keeping the runner???s needs in mind, it surges ahead with a stretchy, breathable headband, ideal for controlling perspiration, and reflective tabs for visibility in low-light conditions.. . UA Siro sweatband gives greater stretch & recovery, an ultra-soft feel & more breathable performance. Reflective front UA logo & rear tab for increased visibility & safety during low-light runs. Adjustable hook & loop back closure offers a customized fit. 100% Polyester. Imported.