The Folsom Street Fair is an annual event held in San Francisco, California, typically on the last Sunday of September. It celebrates the leather and BDSM communities, showcasing a variety of alternative lifestyles and sexual expression. The fair features numerous vendors, live entertainment, and art installations, attracting thousands of attendees from around the world. Founded in 1984, the fair has grown significantly over the years, becoming one of the largest leather events globally. It promotes inclusivity and acceptance while raising funds for local charities. The event is part of the broader San Francisco LGBTQ+ culture and is known for its vibrant atmosphere and diverse participants.