Casquette

Casquette is French for "cap". In cycling jargon, it is used to refer to the traditional peaked cotton cap worn by racing cyclists.
With the introduction of compulsory cycle helmets for massed-start racing, casquettes have become less common, but most professional race outfits still have them produced in team colours for wearing on the winners' podium, for wearing under a helmet in heavy rain or for sale to the tifosi. They have also become popular as fashion items in some European, American and Australian cities, often with non-cycling-related designs.