Boston Red Sox Girls

The name Red Sox, chosen by owner John I. Taylor after the 1907 season, refers to the red hose in the team uniform beginning 1908. Sox had been previously adopted for the Chicago White Sox by newspapers needing a headline-friendly form of Stockings, as "Stockings Win!" in large type would not fit on a page. The Spanish language media sometime refers to the team as Medias Rojas for Red Socks.
That name originated with, and was made immortal by, the Cincinnati Red Stockings, who were during 1867–1870 a member of the pioneering National Association of Base Ball Players. Managed by Harry Wright, Cincinnati adopted a uniform with white knickers and red stockings, and earned the famous nickname, a year or two before hiring the first fully professional team in 1869. When the club folded after the 1870 season, Wright was hired to organize a new team in Boston, and he did, bringing three teammates and the "Red Stockings" nickname along (Most nicknames were then only nicknames, neither club names nor registered trademarks, so the migration was informal). The Boston Red Stockings won four championships in the five seasons of the new National Association, the first professional league.