SOFTFAST™ CORE reduces spin and retains energy off the driver to maximize ball speed and distance. And the low compression lets you compress the ball on iron shots for incredibly soft feel. MANTLE LAYER helps retain the energy stored in the core, which translates to faster ball speeds. SOFT DURASPIN™ COVER, our softest, most durable cover grips the club-face for excellent control into and around the green. HEX AERODYNAMICS optimizes lift and reduces drag to help increase distance.