Vibram has developed its new Skyrunning sole in conjunction with the International Skyrunning Federation, which Vibram sponsors. The soles offer a high degree of safety and control for extreme mountain runners and trail runners. They have an ultra-light carbon fiber frame and the usual Vibram grip, made of Vibram’s XS Trek rubber compound. They also use Twaron’s Unishield technology to protect against rough ground and provide better control.