Gist Sonar Road Helmet- protection, comfort, and design, in a single helmet. Extremely ventilated thanks to the 25 ventilation holes that guarantee a continuous dispersion of sweat in any position the athlete takes on. Also available in the innovative Holeographica color scheme for those who want to ride in style.Gist Sonar Road Helmet- protection, comfort, and design, in a single helmet. Extremely ventilated thanks to the 25 ventilation holes that guarantee a continuous dispersion of sweat in any position the athlete takes on. Also available in the innovative Holeographica color scheme for those who want to ride in style.