Channel Island Flux 3 Piece Arch Traction Pad 25mm Vert kick with beveled corners 50/50 groove grip pattern Lined up in front & Mixed Groove in the back 5mm Oval arch Die cut holes for added grip &reduced weight 3 Piece pad BioGrip Natural EVA foam 3M® Marine Grade adhesive The best of both worlds, our 50-50 pads are made with Lined-up Groove up front so riders can feel their board when pumping or tuberiding. Mixed Groove is placed the back half of the pad for when riders step back and need maximum grip during turns or airs.