The Limited Edition RADSPEED XB Island Driver commemorates the season's second Major Championship hosted at the Kiawah Island Ocean Course. The design features a blue and white colorway that takes inspiration from traditional seersucker and the blue ocean and pristine white sands of the Charleston coast. 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.