Hollow Split Rails-The Flex Zone-Hollow rails flex more the solid rails, creating a 70% larger hot spot area from heel to toe that promotes higher launch and more ball speed with the aid of a speed channel. Dual Baffler Rails-The Stability Zone-Baffler rails provide excellent stability and speed through the turf, allowing the club to glide effortlessly out of any lie. Back Weighting-Weight concentrated low and back creates the most efficient transfer of energy to the ball for high trajectories that land softly into greens. Refined Shape-Slightly larger than a traditional hybrid, the shape features a high MOI and square leading edge for longer and straighter ball flights.