The Limited Edition Radspeed XB Season Opener Driver is a tribute to the first and one of the most historic Major Championships of the year. It features a bold green colorway that calls to mind specific visuals including lush fairways, pure greens, and the iconic jacket to name a few. This driver also features the Ultra-Premium Project X HZRDUS Smoke Green Small Batch (Hulk Finish) Shaft The RADSPEED XB (XTREME Back) Driver features an oversized shape (460cc) and back-biased RADIAL WEIGHTING to deliver the longest and most forgiving ball flight with low spin. The RADSPEED XB driver features 20g positioned in the back (14g of fixed weight and a 6g interchangeable weight) to create our most forgiving RADSPEED model. An additional 8g of fixed weight is positioned in the front to lower spin for the longest and fastest ball flights.