fit BERNAL fit is San Francisco’s first and only green fitness center, certified by the San Francisco Green Business Program. Our environmental mission is to inspire the local community to become more environmentally conscious by focusing on conservation, waste diversion and education. fBf strives towards sustainability and makes decisions based on the best wellness options available for good health and the environment. fBf aspires to minimize waste in our landfill bins and enhance eco-responsibility within our community by educating people about sustainable actions within their control.