Product Overview: HZRDUS Smoke Blue RDX PVD 60g Demo Driver Shaft Features: With a unique bend profile that strategically changes per flex for player optimization, and the use of Hexcel’s HexTow® carbon fibers, Smoke Blue RDX is a shaft that ticks all these boxes. Smoke Blue RDX is a counterbalanced design that features a soft midsection to maximize shaft load and feel while maintaining a stout butt and tip section to keep up with all swing speeds and provide a stable feel through impact.