Wilson US Open Extra Duty Tennis Balls (Can) | Wilson Tennis

The Official Ball of the US Open Every September the toughest tournament in the world uses over 70,000 of the toughest tennis balls: Wilson U.S. Open balls. Since 1979, Wilson has been the only ball that has held the distinction of being the Official Ball of the U.S. Open. Constructed of premium high-grade wool that is woven into a thicker, denser felt, the Wilson U.S. Optimal performance on hard courts Wilson has been the official ball of the US Open since 1978 Made with premium Tex/Tech felt