Manufacturer Says:

FT-i Tour Driver with I-MIX Technology. Confidence is in the bag.
The 460cc FT-i Driver pushes the boundaries of shape, of our imagination, of the rules. By positioning weight to the extreme corners of the clubhead, the FT-i Driver produces the highest Moment of Inertia of any driver on the market today for unparalleled forgiveness. Tour models are designated by a half-degree loft and have a face that is slightly open, providing skilled golfers a pleasing look at address and increased workability. Now, through I-MIX Technology, you can optimize your FT-i Tour Driver to meet any conditions. From course conditions to a player’s preferred strategy, I-MIX Technology gives you the same level of choice as our Tour Pros.

Where to get it:
Callaway Golf Ladies RH Womens Big Bertha Fairway Woods