Any shaft that fits you will work in the Ping G SF TEC Driver. They offer 4 proprietary Ping shafts, and the Aldila Xtorsion Copper, the Mitsubishi Kuro Kage Silver with TiNi, and the HZRDUS Yellow. We used to carry the Xtorsion and the Kuro Kage Silver with TiNi but both are discontinued shafts in the aftermarket. We have a few of the Kuro Kage remaining. We do carry the HZRDUS Yellow. There are a lot of other options, so I would encourage you to get fit by a qualified fitting professional and/or look at shafts beyond their offerings. Again, any quality shaft that fits you can work in that driver.