There are both serious Women’s American Football Leagues and the Lingerie / Legends Football Leagues, where players play in skimpy kit.
Women’s American Football
Women’s Football Alliance (USA):
Mexican Women’s American Football Leagues:
The Lingerie Bowl was first played in 2004 as a rival to the Super Bowl half-time show which was seen by many fans as two long and boring. It was aired on a rival TV network and featured two teams of scantily-clad Women. The Bowl eventually came a fully-fledged league in 2009. The owner of the League admitted it was aimed at beer-drinking college students and following claims of sexism the Lingerie was replaced by bicycle shorts and crop-tops, and the League renamed the Legends Football League.
Ladies Indoor Football Leagues
Super 8 Football League Ladies Baja (Mexico):
Legends Football Leagues
United States Lingerie / Legends Football Leagues
World Lingerie / Legends Football Leagues
Legends Football League United States (Seasons):
X-League Extreme Football League (Seasons):