YONEX EZONE GT Hybrid The arena’s first use of the fabric Namd dramatically improves the interface adhesion of the graphite fibers and resin, leading to a prime strength and light-weight shaft. With increased flex and an unprecedented snapback, it produces a prime initial ball velocity for max distances. The Slanted Grooves save you grass and moisture from coming in-between the club face and the ball, serving to to stabilize the ball flight even as reducing left and right facet spin for more accuracy.