The '07 F1 features a reengineered flex pattern that helps the turn yet does not sacrifice any speed out of the turn. One of the secrets to the F1's success is its large sweet spot. Moderately sharp forebody bevels work in conjunction with the sweet spot to provide a smooth noncritical turn. A Texalium top provides strength while a perfect blend of carbon graphite and fiberglass provides light weight and durability. The F1 is known for being very fast and smooth with a failure rate of zero. CAPT construction with polyurethane resin core. Viper fin system with aluminum foil. Lengths: 65 66 67 68 70. Connelly F1 Slalom Water Ski - Draft Plate w/ Rear Toe Plate