The VR-S Covert irons feature a high speed cavity back design for longer straighter shots. They are constructed of high-strength, ultra-thin stainless steel with NexCOR variable face-thickness technology. The VR-S Covert clubface delivers a high COR face for more distance. The new face construction expands the maximum COR zone around the middle and lower area of the face. The X3X groove pattern features more grooves spaced closer together for maximum contol and more consistent shots. This iron puts super game improvement performance in a player''s profile.