Donnay, the 100-year-old tennis brand, has announced the introduction of a new product line for the U.S. market called the X-series. Based on patented technology called “XeneCore”, nine models will be offered: X-Black 94, X-Black 99, X-Blue 94, X-Dark Red 94, X-Red 94, X-Red 99, X-Orange 99, X-...
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