Highly ventilating pro-grade running cap with mesh at top and sides for exceptional cooling and curved peak for optimal sun protection. Elastic draw cord at back ensures a personal fit. Mesh at top of head and at sides for optimal ventilation. Moisture-wicking and quick-dry polyester mesh. Elastic drawcord at back for optimal fitting. Curved peak for best protection against the sun. Seam at inside covered with tape to avoid chafing. Inside cap covered with polyester mesh to wick away moisture.