The Vortex stainless woods are cast from 17-4 stainless steel and designed to provide a generously large face with a lower center of gravity. The center of gravity is achieved from a sole made 50% thicker than that of standard metal woods. The chambered sole allows for easy setup in any lie position. The contoured soleplate maximizes balanced weighting for an effortless, smooth feel with every swing of the club. Shaft Tour-Series performance graphite. Grip Lamkin (black).