Tecnifibre X-One Biphase 124 is a premium multifilament tennis string designed for players seeking exceptional comfort, power, and ball feel. Its multifilament construction combines polyamide and polyurethane fibers to deliver a soft, elastic response with excellent shock absorption. Tecnifibre's Biphase treatment enhances durability and tension maintenance, while the thin 1.24 mm gauge provides greater responsiveness and touch than thicker versions.
Intermediate to advanced players who prioritize comfort, power, and precise ball feel. An excellent choice for players seeking a premium alternative to natural gut or a softer, more responsive option than polyester strings.
| Material | Polyamide multifilament with polyurethane |
| Construction | Multifilament |
| Gauge | 17 / 1.24 mm |
| Length | 660 ft / 200 m |
| Technology | Biphase Treatment |