Tecnifibre Tennis String X-One Biphase - Natural - 1.3 - Multifilament

X-One Biphase is Tecnifibre’s top-performing multifilament string, engineered to deliver maximum playability, long-lasting durability, and excellent tension integrity. A built-in wear indicator shows clear fraying at the ball impact point, allowing players to restring before full breakage.

As the world leader in multifilament technology, Tecnifibre manufactures this string in France using advanced materials and processes that provide exceptional power, comfort, and consistent performance over time. With Elastyl and H²C fibres for superior elasticity and strength, plus the unique Biphase pre-stretch treatment, this string offers enhanced durability, better spin potential, and a feel close to natural gut—without its weaknesses.

A global best seller, X-One Biphase is ideal for players seeking premium comfort, powerful response, and high-level performance.

Key Features

• Wear indicator for timely restringing
• Exceptional power, comfort, and longevity
• Not recommended for heavy string breakers
• Made in France
• Natural-gut-like performance without fragility

Specifications

• Type of String: Multifilament
• String Range: X-ONE BIPHASE
• Packaging: Set 12m
• Color: Natural
• Gauge: 1.30