The JPX ONE Fairways bring advanced technology to long-game precision. Quick Switch Adaptor : 4 degrees of loft adjustability to fine tune trajectory and look. CORTECH Chamber: THE MISSING PIECE: Mizuno's CORTECH Chamber encases a dense stainless steel weight with elastomeric TPU, taking stress from the club face and creating an additional energy source. At the same time, locating weight closer to the club face to reduce spin rates, while contributing to a more solid, powerful sensation at impact. MAS1C Maraging Face: Delivers greater energy transfer and faster ball speeds across the clubface