Not visible, but hard as steel?
Even if you don't see abs, you can have a rock-hard cube belly that is very functional. Strong abs can be there, even if they are hidden under a layer of fat. Women have a higher average body fat percentage than men. The fat percentage for women is on average 20 percent, which means that you have to train a lot harder for visible abs. As soon as your abs get stronger, you will notice this in everyday life: