Tecnifibre X-One Biphase Tennis String - 12m - in Retail Package.

Color: Natural, Red or Black (new colour)

The most performant technology in strings in terms of power and comfort.

The property of this exclusive fibre put Tecnifibre as a leader in advanced technology in string production.

#1 rated string by the USRSA for overall performance, comfort and the highest ranking for playability. 
#1 rated by the USRSA for tension maintenance.

The perfect combination of power and control.
Elastyl Fibre: 12% more powerful than a standart polyamide.
Technology:
Multifilament technology
PU coated + H2C 
Elastyl Fibre
Biphase Process