24 Hour Fitness, is a chain of fitness centers with over 400 locations in the United States, offering a wide range of amenities including cardio and strength equipment, group exercise classes, personal training, and more.
Handel Gothic, a sans-serif typeface designed by Donald J. Handel in the mid-1960s, is used for the "Fitness" portion of the 24 Hour Fitness logo. You can learn more about this futuristic font here.