High performance for kids pro level PVC sandwich construction fast and easy Kids want to rip. The Rookie is a shrunk down Da Curve. Of course, we had to make some changes to the shape so that it would work perfectly in such a small size. For example, we straightened the rocker to make it faster and easier to ride. And, we changed the stance to better fit a young person’s legs.The Rookie will help any windsurfing kid get better fast. With a PVC full sandwich construction, the Rookie is light enough to rip like a pro board and can also survive the flat landings that come from a day of training loops.