One move. Not a sit-up. Not a plank. Not a crunch. If your stomach looks soft or flabby , even when you’re not overweight, the problem may NOT be body fat. It’s something called fascia. Fascia is a connective tissue layer that wraps around your midsection like a built-in corset. When it weakens or atrophies, your stomach can look loose — even if you're dieting or doing hundreds of crunches. The