Titleist TSR1 Women's Driver Ultra-Lightweight Speed & Distance TSR1 is designed to maximize performance for players with swing speeds under 90 mph – roughly a third of all golfers. Its ultra-lightweight design is the key to creating effortless added yards to every drive. Multi-Plateau VFT Design This new construction approach builds the face inward, layer by layer, to create nearly constant CT across the entire hitting surface. In other words, it produces amazing forgiveness and ball speed from every strike anywhere on the face, whether pure or miss-hit. Face-Centered CG The deep center of gravity in TSR1 is almost perfectly centered to the face, an improved position that promotes a higher launch and exceptional ball speed. MMT SPEEDMESH Shafts Playing at under 40g in all flexes, MMT SPEEDMESH offers amazing ultra-lightweight speed, with a focused SPEEDMESH application in the tip for incredible stability and energy transfer at impact. A perfect pairing of minimal weight and high launch to pair with TSR1.