Similar questions have come up before. Hope you find this description helpful. Think of a saddle as a soft pillow. Take your hands and put them on a pillow, with a little space between your hands. Now push down on the pillow. What happens?--your hands sink and the space between your hands is now higher or at least raised between your hands. Just the opposite of what you want to happen on a bike. This is why a firmer saddle, which supports your sit bones is better than a soft saddle which allows them to sink in. There are LOTS of saddles in many widths, designs, and cut-outs. Many, maybe most, of us have gone thru more saddles than we'd like to admit, in search for "the one".