Next version in the F-1 series. High resistance top-sheet combined with Offensive Sponge 21.
TSP X's F1-21 TSP X’s F1 21 is a high friction rubber with an elastic sponge. This combination produces great touch shots and creates power with consistency for allround play. Also, it will give you more feeling for the ball for serving, receiving serves, pushing, counter attacks and smash shots.
- Soft rubber good for hand smashes and drives.
- Super performance by F-power.
- High friction top sheet with F1 technology.
- Singapore's Lie and Germany's Laura use this rubber.