X-One Biphase is Tecnifibre's latest premium string. It is designed to take playability and durability to a new level by providing ultimate performance of power and feel, while extending string life by 20% and offering increased spin.
It produces a lively firm feel, produces tremendous control, and holds tension well.
Elastyl fibers offer increased power whilst Trimerized PU & H2C fibers hold the tension better for increased control. Natural gut feel.