Originally manufactured in Chicago, Illinois and Saint Vincent and the Grenadines, the Pro Staff line was Wilson's answer to the Prince Graphite, Yonex Rex series, and the Dunlop Max 200G. The original graphite Pro Staff was 110 square inches; the 85, 95, and 125 sizes were developed from it. Pete Sampras, who used the racquet for his entire professional career, established the reputation of the Pro Staff 85 (graphite/Kevlar) as a legendary racquet more than any other player. Other first-rate players who have used the Pro Staff 85 Kevlar during their professional careers include Jimmy Connors, Jim Courier, Stefan Edberg, Chris Evert, Roger Federer, and Manuela Maleeva.