Tecnifibre X-One Biphase (Red) size-18-inch Champro BP11K Tournament Knicker -

Champro BP11K Tournament Knicker - Gray

football and volleyball

Two contrast self fabric set-in stripes on sleeves

Grade B Full Grain Leather

The adjustable waist belt extends up to 49 inches

Tecnifibre X-One Biphase (Red) size-18-inch Champro BP11K Tournament Knicker -X One Biphase is Tecnifibre's 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. X one Biphase joins together H2C (High Heat Capacity) and NRG microfilaments to acquire this high power and dynamic response. X One benefits from a process (trimerization), which bonds polyurethane to protect against wear and