This flat belly challenge dares you to complete an intense, 16-minute workout, every day, for 28-days straight!

This challenge utilizes short, 20-second rest periods, so be ready to give it your all! It will test your endurance and help you build strong and sexy abdominal muscles. Get on board with this ab workout challenge and work for the six pack you’ve always dreamed of. The 28-Day Flat Belly Challenge starts now!