The bottom rocker is a blended curve with the biggest "bend" under the riders stance. Flat bottom with a 3/8" of roll out to the rails. The flat bottom rolls softly into a vee exit providing excellent release off the tail block in the flats and aides in riding swell while riding back off the tail. The rails are upright with soft edges providing a "slippery" release. They blend to a harder edge in the rear of the hull.