The hardest Sixpack coach of Germany's colleagues Men's Health have been buttoned. These three guys make every stomach a washboard - in 8 weeks. Here's the proof

The men above are the hardest Sixpack coach of Germany - and the bottom colleagues of Men's Health, who have moved into the hands of the coaches. In the photos they still wear shirts. Which are no longer needed now.

The best exercises for washboard abs and 900 further exercises can be found free of charge at our Men's Health Personal Trainer app or on the Web www.menshealth-personaltrainer.com