The Ultra 100 Countervail Black-Edition combines effortless power, unmatched versatility and excellent playability into a stunning design modeled after Roger Federer’s black tuxedo look of the Pro Staff RF97. A top choice for all courters who value the complete package alongside a design that delivers a new edge for the Ultra franchise.
An enhanced racket throat geometry at a crucial bending and twisting area of the frame. This provides greater stability and stiffness that results in more power and increased directional accuracy.
This innovative grommet system compresses at impact to provide increased ball dwell time on the strings, producing better feel and more potential energy that drives explosive power.
With its groundbreaking carbon layer integrated into the frame, Countervail is a material technology that maximizes a player’s energy, reduces muscle fatigue and shortens recovery time.
Provides a consistent, more forgiving string bed response while dramatically increasing the sweet spot.