fiberglass and metal ones.

The International Bobsleigh and Skeleton Federation (IBSF) was founded in 1923. Men's four-man bobsleigh appeared in the first ever Winter Olympics in 1924, and the men's two-man bobsleigh event was added in 1932. Though not included in the 1960 Winter Olympics, bobsleigh has featured in every Winter Olympics since. Women's bobsleigh competition began in the US in 1983 with two demonstration