Celtic's 2010/11 home shirt, made by Nike, keeps faith with the vertical green and white hoops the club has worn in some form since 1903. There is no reinvention here, just a clean execution of one of football's most recognisable patterns, with a round collar and the fitted cut typical of Nike's work in that period. For a collector, the interest lies precisely in that consistency: how a club can change managers, players and fortunes while the shirt remains a steady, legible statement of identity.