The Jack Knife has a good amount of surface area in the front half with a low rocker, allowing for lots of paddle power and drive. The tail of the board is pulled into a tight, rounded pin, helping the board hold in critical moments on a wave. The Jack Knife is running a single concave to a double concave through the back third of the board with a slight V after the single fin box. The tail rocker is slightly accelerated just past the finbox to make it a little more maneuverable in smaller waves. The Jack Knife can be used as a small wave cruiser and as a step up in overhead surf, truly a one board quiver.  

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The Jack Knife has a 2+1 (single fin with side bites) fin setup. We use a 10.25” box to allow the surfer to have lots of range to move the fin forward and backward to create different feels. The general rule of thumb, fin forward = looser and more maneuverable, fin back = more drive and drawn-out turns.