The New Srixon W-403 Driver represents a new level of achievement in driver technology. The 420cc W-403 feature the proprietary Impact Power Body construction - where not only the face but the sole and backwall of the driver have varying thicknesses. This unique technology keeps the golf ball on the clubface just that fraction of a second longer which helps reduce distance-robbing backspin. The thin, forged titanium face helps provide maximum allowable energy transfer for high velocity. Built with Srixon's legendary elliptical high COR zone, the W-403 is Srixon at its biggest, longest and most forgiving.