Mini Doo-Zs are designed to be a stylish and low-profile headband to wear while you ride Made from a soft wicking and breathable fabric with an elastic band for a secure fit Wearable alone or with most helmets Elastic on the back for a secure fit Lightweight Stretch Fabric Wicks and breathes 80% Polyester / 15% Rayon / 5% Spandex. MINI DOO-Z COOLSKIN BK/BK