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The string which contains all of Tecnifibre's flagship technologies. A mix of Elastyl and H2C fibres for high power and tension maintenance. Unparalleled comfort and excellent shock absorption. PU 400 (polyurethane) for maximum elasticity.
The X-One Biphase squash string delivers the same feeling as natural gut with increased durability. Elastyl fibers provide increased power and trimerized PU & H