Titleist GT Metals feature the most advanced drivers in the companys history to date. Through a combination of ultra-light materials, refined aerodynamics and Split Mass Construction, Titleist has produced a driver line that is faster, longer, straighter and more forgiving. GT4 is for players who want low spin and penetrating ball flight. The dual-spin control settings let players adjust the 11g and 3g weights on the sole to aggressively reduce spin or find a balance between stability and moderate spin reduction. The ultralight crown is constructed a new Proprietary Matrix Polymer that allows for an optimal internal weight position. The weight savings from the ultralight material pushes more mass to the front of the club to improve speed and increase MOI.