Liquid Force Groove Wakeboard with Transit Boot The Groove is a progressive continuous rocker design-Smooth riding from edge to edge and even smoother off the wake. Double to quad concave hull configuration. Double inside single concave through midsection into quad V concave out the tail. Concaves for lift and V for quicker turning. Quad molded plus one fin setup. Long warped side fins with shollow inside fin set. Outside fins for rail hold inside set to control thrust through the dual concaves. The Transit boots that come on the Groove feature the new Intergrated Plate chassis for hassle free adjusting. Pillow top liner-Eliminates shin and calf discomfort from those marathon sessions. Liquid Fit-No heat molding necessary. Exclusive blend of ultralight foam that forms to you foot after a few rides. Mold you boots to your riding stance rather a relaxed position in a shop.