440 Castro is a gay bar in San Francisco's gay district catering to the bear and leather community. It hosts regular events including Underwear Night and 'Battle of the Bulges.

The bar gets busiest on the weekends, attracting men of various ages (both locals and tourists). Drinks are strong and reasonably priced, and the atmosphere is one of the friendliest in the city. 21+ only.

The venue features great cocktails, happy-hour drinks, and more.