White clothing was enforced at Wimbledon from the 19th century, in part because it covered up unwelcome signs of sweat. White clothing was also seen as cooler in the summer heat.

The bandana and hat did not cover Chalamet's head entirely, however. The back of his head was exposed and revealed that his ...

The model, which retails at $170 on NewBalance.com, marked a stark departure from the Nike offerings he's donned since entering the league. For casual fans, that switch might seem insignificant.