PREMIUM SOUND AND SPEED High speed face and ECHO(R) damping technologies are designed for consistency regardless of strike location, creating longer straighter shots. CAP-BACK CONSTRUCTION Cap-Back Construction(R), Thru-Slot Speed Pocket(TM) and Inverted cone create the ultimate suite of technologies helping everyone hit better shots, more often. PREMIUM COMPONENTS Premium ultralight weight components for lower static weight to create more speed. CONSISTENCY WITH EVERY SWING New and improved loft and lie package for proper gapping between clubs and added draw bias.