Our favorite kiteboarding harness has been the mystic Warrior full med to big guys, and the firestarter for small to medium guys.  The favorite harness for the gals is the Maui Magic Hana Waist Harness.  We carry the full line of Mystic and Maui Magic Harnesses as well as the liquid Lorce waist harnesses.  Dakine Nitrous, Tempest, Storm Fusion including shorts, waist, impact and seat harnesses have always been top sellers as well.