Originally Posted by goldfinch

You can measure your own sit bones, which may or may not help in picking a saddle. Lightly dampen a towel and lay it on a step or bench that is fairly low to the ground. Put a piece of paper on top of the towel. Sit on the towel, leaning forward like you are on a bike. Get up and measure the sit bone marks. Center to center is the easiest measure. Outside to outside may be a bit blurry. But, it should give you an idea of the range of saddle that may work for you.