This new 31″ Johanne Defay Pro model is the newest of the SmoothStar Surf Trainers. It has been closely developed with Female pro Surfer Johanne Defay and mimics her powerful carving surf turns. The 31″ model has the deepest concave of all of the smaller high performance models under 33″. The deeper concave enables riders to hold the rail more than other models and helps maintain compression through the turn just like surfing manouvers such as: Round House Turns, Drawn out Carves and Grab Rail turns. The tail is extra wide so this helps adults not just groms do radical snaps and not have the toes drop off the back of the tail. Johanne’s board is suitable for groms over 155cm and adults under 181cm.