The O'Brien Endo Slalom Ski is built with a highly refined compression molding process and uses a lightweight PVC core and aerospace-grade carbon fiber. The longer sweet spot layup creates an easy turning ski that is also one of the fastest out of the buoy and across the course. The rocker pattern offers smooth, forgiving turns, while the tunnel concave carries more speed into the turn. The O'Brien Endo Slalom Ski is designed for intermediate to advanced skiers. Line Lock Lite Fin with Pro Wing.