Nike Headband Unisex Dri Fit Fury 3.0 Reversible is a gray-colored headband made of 76% Polyester, 17% Silicone, and 7% Spandex. It is designed to fit most head sizes and is suitable for both boys and girls. The headband is reversible and features the Dri-FIT technology that wicks away sweat to keep the head dry and comfortable during workouts.