The Salomon S-Lab has developed the Phantasm to be a lightweight road racing shoe that is inspired by the slopes on the Alps and designed to go fast. The Phantasm has everything top athletes need in a road racing flat including a lightweight design, seamless upper, and rocker geometry. What You'll Love Seamless construction Fast transitions for fast running Contragrip outsole for impeccable traction The Salomon S-Lab Pulsar was created with the brand's best innovation to help athletes run faster. The Energy Surge foam gives athletes a cushioning package that is light, responsive, and optimizes energy return over long distances. Salomon also pulled inspiration from their ski background by designing the midsole with a rocker geometry that allows runners to efficiently transition from stride to stride. This shoe is finished off with a simple and seamless upper that is light and minimalist so nothing will hold you back from your fastest times.