There are 2 products.
Durability above all. 100% polyester monofilament string that's ideal for string breakers. The new version of the Pro Xtreme string.
The Topspin Cyber Flash is a tennis string made of the most modern, optimized PETP. Tennis players get a precise feedback from the SoP system for the individual strokes, which makes the string pleasant to play. With fast strokes, the optimal energy transfer of the tennis string pays off, which not only gives you optimal control but also very good ball acceleration.
