Tiger Woods is one of the greatest golfers to ever step on a golf course. His PGA tournament wins speak for themselves, but his overall appeal transcends the game. Tiger has become a brand unto himself. Nike created an entire golf product line centered on Tiger Woods. His appeal is so great, that he usually draws the largest gallery of spectators when playing in a tournament. Tiger wore these grey and white shoes during a PGA TOUR, USGA and/or WGC tournament event. This pair of Nike golf shoes is genuine and authentic as being tournament-worn by Tiger Woods and was legally procured directly from Tiger Woods. Tiger's exclusive partner for autographed memorabilia, Upper Deck Authenticated guarantees the authenticity of Tiger's signature on this pair of shoes through its Five-Step Authentication Process.