the distinctive jersey was not introduced until 1975, as the sponsor, Chocolat Poulain, had chocolate bars were covered in a polka dot wrapper. The first rider to ever wear the Polka Dot Jersey, during the 1975 Tour de France, was Joop Zoetemelk, and while he never won the King of the Mountains competition in the Tour De France he is considered to be one of the greatest climbers in Tour de France history. Zoetemelk did win the mountains classification in the 1971 Vuelta a España, as well as the general classification in the 1979 Vuelta a España and the 1980 Tour de France. Sponsorship Between 1993 and 2018, the jersey was sponsored by Carrefour supermarkets, initially under the Champion brand, and later under the main Carrefour brand since the 2009 edition of the Tour. Since 2019, the jersey is sponsored by E.Leclerc supermarkets. Current situation At the top of many climbs in the Tour, there are points for the riders who are first over the top. The climbs are divided into categories from 1 (most difficult) to 4 (least difficult) based on their difficulty, measured as a function of their steepness, length, location within the stage (near the start or end), and location in the overall race (early in the race or toward the end). A few of the toughest climbs were originally given different individual points scales, and were thus listed as "uncategorised" (Hors catégorie, a term that has since passed into the French language to refer to any exceptional phenomenon); however, since the 1980s in fact the hors catégorie climbs have been given a single points scale and effectively became, despite the name, just a top category above category 1. In 2004, the scoring system was changed such that the first rider over a fourth category climb was awarded 3 points while the first to complete a hors catégorie climb would win 20 points. Further points over a fourth category climb are only for the top three places while on a hors catégorie climb the top ten riders are rewarded. Since 2004, points scored on the final climb of the day have been doubled where that climb was at least a second category climb. Distribution of points The points gained by consecutive riders reaching a mountain top are distributed according to the following classification: For 2020, "Double points will be awarded at the top of passes or at