Elastyl fibers provide 12% more power than standard polyamide for enhanced shot output
H2C fibers maximize performance with high-temperature fibers for better tensile strength and spin
Biphase process with exclusive pre-stretch technology increases string durability by 20% for longer lifespan
Trimerized PU core ensures even comfort and touch for a natural gut feel
Wear indicator signals when to replace the string, extending its usability
Summarized by Shop
Tecnifibre X-One Biphase Tennis String Set in Red is the ultimate synthetic string and provides the closest playability to natural gut of any synthetic string produced. Elastyl Fibers are used, giving 12% more power than the standard polyamide materials used in other synthetic strings. X-One Biphase features a unique technology that separ