Factum Cardio Kickboxing isn't your 1990's "Billy Blanks" version of a fitness fight made for late-night informercials. After your first class you'll be wondering why you haven't been doing these amazing workouts more often through the years. Cardio KB is never boxing, it's a challenge in stamina, technique and focus. It's also great for time-pressed individuals looking to lose weight fast. In as little as 30-minutes, you can expect to burn more calories than in your average step-class or pilates class.