Should be the Surf/Ski/Board Mount
Although it's titled the surf mount, it's far more versatile than that. It's a far better mount for skis or a snowboard than the standard GoPro mount that's just the traditional mount with a sticky back. On bigger airs, those standard mounts don't have the surface area to stay stuck to your ski board. By using this mount, you have better chances of not losing your camera (and getting the shot).