Rolled bottom and deck with Vee ahead of the fin. Flat behind the fin box so that the board will come right out of the bottom turn and change direction with out tracking over the back of the wave like the original design. I offer the McVee as the spiritual successor to those original boards. The longer ones have wonderful nose riding capabilities along with excellent turning. The shorter ones just have fabulous trim and turning capabilities. At any length the boards are designed for 2 foot 6 foot waves that would generally be favorable for a long boarding. However these boards are more maneuverable and faster than a longboard and in my opinion a lot more fun.