Take the bite out of windy and cold weather running with the windproof barrier headband from Pearl Izumi. Barrier windproof front panel keeps your forehead and ears shielded from the wind. Barrier fabrics single layer lays next to skin for simpler and more effective function. P.R.O. Thermal fabric insulates while wicking moisture. Ergonomic cut fits snugly over ears. Ponytail compatible. Reflective logos for low light conditions. One size.