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
General classification in the Tour de France retained the yellow jersey as a result), but had broken his collarbone in the crash and did not start stage 7. Chris Froome became the overall leader with Martin's non-start. The yellow jersey on the first day of the Tour is traditionally permitted to be worn by the winner of the previous year's race; however, wearing it is a choice left to the rider, and in recent years has gone out of fashion. If the winner does not ride, the jersey is not worn. The previous year's winner traditionally has race number "1" (with his teammates given the other single-digit