Radar Lithium Vapor Waterski has taken the evolution of skiing a step further with an all new 2014 design. Radar's new rockerline is closer to continuous without giving up the sweet spot underneath the front foot. The earlier rising rocker allows for a tighter turn radius while remaining stable. The Lithium Vapor's sidecut is parallel with .1" added to each side of the ski without making the maximum width any wider. One bevel running the length of the ski ensures one consistent feel from tip to tail. The slalom ski's 5-speed rail in front of the wide spot gives a stopping point for overcommitment from the skier or support when you need it. The Lithium Vapor's edge-to-edge concave allows for better roll from the ski and a sweet offside turn like you've never felt before. Constructed with lightweight PVC foam core.