Marketing speak - pfft. It's all about selling replica kit to the kiddies.

Never heard a player or manager say after a game that the new shirts aerodynamically got them over the line.

Manufacturers change it for change sake every year now - the spiel about new design is meant to give them reason.

Like names and squad numbers - at the ground you can't see names, on the TV you hear commentary. But the Yanks told FIFA in 1994 it is a great marketing exercise.