L as in leader bib.
To make it easy for the viewers and spectators to identify the current leaders – the overall and sprint ranking leader - of the Tour de Ski, FIS spent considerable effort to re-design the Tour leader bibs.
As last year, the current overall Tour leader will wear a Golden Tour Leader Bib. And the current Sprint Ranking leader will carry a Silver Tour Leader Bib. The colors and the one-color clean design were selected to ensure that everybody could easily differentiate the yellow bib worn by the Viessmann FIS Cross-Country World Cup leader and the Tour leader.