Under an initial four-year deal, Macron will produce the club's match kit and leisurewear.
"This is an extremely exciting and beneficial deal for our club. We will be proud to carry the Macron brand on our stadium," Wanderers chairman Phil Gartside told the club's website on Thursday.
Athletic goods retailer Reebok became a subsidiary of German sportswear company Adidas in a $3.8 billion (2.2 billion pounds) deal in 2005.
(Reporting by Alan Baldwin, editing by Ed Osmond)
