In 1971, the modern bandana code came into use among leather people. Many leather people went to the Embarcadero YMCA (at this YMCA, doing weight training while wearing nothing but gym shoes and a jockstrap as well as nude swimming were both allowed until 1975, when women could become members of the YMCA). Leather people who worked out at the Embarcadero YMCA took advantage of the opportunity to get together with sailors when they came into town and rented rooms at the adjacent Embarcadero YMCA Hotel.