The S-Fit 3 is the racquet choice of returning WTA Kimiko Date. The S-Fit 3 as a huge sweet spot resulting in both power and depth in both the ground and volley game .  Someone with an aggressive doubles game will love the power/comfort and control combination.

S-FIT Grommet System - Two Racquets in One! Speed or Comfort - Your Choice!
Used by Kimiko Date-Krumm in her title run at the Hansol Korea Open last week, the new S-FIT line of tennis racquets feature the groundbreaking Select Fit Grommet System, which provides the player the freedom to customize the playability of their racquet for SPEED or COMFORT by selecting different stringing patterns.

NEW Dual OPS Technology
The new Dual OPS technology decreases air resistance by 10% for increased swing speed and added power. Less torque on off-center hits allows for a 13% increase in racquet stability. Compared to conventional racquet shafts, Dual OPS technology reduces vibration by 10%, enhancing feel and comfort. 

Technology
Select S-Fit Grommet System
Speed or Comfort? S-Fit's unique grommet structure allows you to choose between two contrasting stringing patterns for comfort or speed - it's up to you!

Comfort Pattern: Comfort pattern provides a comfortable feel at impact and effortless power.
Speed Pattern: Speed pattern provides a solid feel at impact with greater ball speed.
You can tune your racquet whichever way you want, whatever the temperature, surface or condition of your match.