CORTECH CHAMBER. Mizuno’s CORTECH Chamber encases a dense stainless steel weight with elastomeric TPU – taking stress from the clubface and creating an additional energy source. At the same time locating weight closer to the clubface to reduce spin rates. While contributing to a more solid, powerful sensation at impact. Carbon Composite Crown. For low center of gravity and stability from off center strikes. Expanded Front to Back Weighting. Additional 8 gram backweight balances with heavier front section for consistent launch characteristics. High Energy MAS1C Steel Face. Reworked with a new multi-thickness design – made possible through the face support of Mizuno’s CORTECH Chamber. Quick Switch Hosel. Offers 4 degrees of adjustability.