Young rider classification in the Tour de France only open for first-time competitors, but in 1987 it became open for all cyclists less than 26 years of age at 1 January of the year following that tour. From 1989-1999, the white jersey was no longer awarded, although the competition was still calculated. Since 2000, the white jersey has again been awarded, open for all cyclists less than 26 years of age at 1 January of the year following that Tour. In 1997, the name of the competition officially changed to 'Souvenir Fabio Casartelli'. The optical retail chain Krys has sponsored the white jersey since 2015. Since the young
Mountains classification in the Tour de France climber was first recognised in 1933, the distinctive jersey was not introduced until 1975. The colours were decided by the then sponsor, Chocolat Poulain, whose chocolate bars were covered in a polka dot wrapper. Currently the jersey is sponsored by Carrefour supermarkets, which has sponsored the jersey since 1993, initially under the Champion brand, it switched to the main Carrefour brand for the 2009 edition of the Tour. The Tour's jersey colours have also been adopted by other cycling stage races; for example, the Tour of Britain also has a polka dot jersey. The first rider to ever wear the