The polo shirt has its roots in tennis starting from the nineteenth and early twentieth century. While the earliest tennis polo was created from a less flexible white, long-sleeved button ups (worn with sleeves rolled up), the tennis polo as we known today were revolutionized by Rene LACOSTE (founder of LACOSTE) who remade the shirt with loose knit pique-cotton. Since then, the polo shirt had traveled beyond the bounds of tennis courts and became one of the favorite items donned by sports fans. For Spring/Summer 2010, Nike Sportswear kept the fans in mind and recreated the polo into The Grand Slam Polo into a technical item which keeps its wearer cool and dry even in the hottest, most humid days of the summer-- an absolute necessity for those planning to catch the FIFA World Cup live in summer. The culmination of the perfect summer polo lies in a high quality pique fabric which is more breathable than traditional polos. In addition, the vented collar construction knit on the inside of the back collar also adds to the shirt's wonderful ventilation. In terms of comfort, the interior of the fabric is created in a flat-knit to keep the polo smooth against skin. Taking a Nike Sportswear design twist on the quintessential sportswear apparel, Nike Sportswear created its own chest logos with four variations, the Nike Swoosh, traditional Nike logo, a sunburst and a shoe. The polo is available for both sexes, and the women's version features a slimmer silhouette, narrower placket, capped sleeves and more buttons for a more feminine look.