F45 Training is a 45-minute HIIT workout that will challenge you like never before The F stands for functional training, a mix of circuit and HIIT-style workouts geared towards everyday movement 45 is the total amount of time for sweat-dripping and heart-pumping fun With thousands of exercises in our database and a nearly infinite amount of combinations, members will almost never take the same class twice F45 Training is here to bring you the world's most innovative workout Team Training, Life Changing