It’s the winning choice for Rafael Nadal. The right string for players who want more control and incredible spin!

Packed with the latest technologies, this high-density co-polyester mono-filament string offers a totally unique feel and a powerful, ultra-high-speed response. 

The octagonal section and cross-linked silicone coating allow the strings to quickly return to their original positions and “bite” the ball better for maximum spin.

CO-PET-O Construction.
A unique high-density co-polyester guarantees maximum control.
The octagonal structure provides an exceptional spin.
A totally unique feel on impact with maximum control.
The benchmark for performance players.

Thanks to their unique structure, mono-filament strings are the stiffest of all. The main advantages are durability, control and topspin. The perfect choice for competitive players who want a responsive string that won’t break.

POLYESTER MONO FILAMENT