The addition of natural flax fibers provides optimal vibration filtration at the racket's handle for the ultimate feel upon impact. Flax also generates a muted sound for an even more controlled feel.
FSI CONTROL PURE STRIKE 27
Frame String Interaction Control is a technology that combines a tighter string pattern (for more control) with the Woofer system (which increases contact time between the ball and the strings for more feel).
CONTROL FRAME TECHNOLOGY
This technology, developed for maximum control, combines the stability of a square frame with the dynamism of a standard elliptical frame.