Measure your sit bones first.
Just like measuring your feet before trying on shoes, you need to know your sit bones so you know what width of saddles to start with.
T or Wedge?
If you have chafing on the lower "panty-line" where your butt meets your thigh, the transition on a saddle is too gradual for the angle of your hip joints (too wedge shaped viewed from above) and is wolloping your leg as it moves when you pedal.
Cut out or No?
Do you prefer saddles with a cut out? Wide cut-out or narrow? Short or long?
Padded or firm?
Some folks don't like padding because it jams up and chafes and causes pressure and numbness. Some folks can't stand firm saddles because it's too hard on their sit bones.
I guarantee, if you can give just a couple of these pieces of information and an idea of the kind of riding you do most, there will soon be several people with the perfect saddle who will chime in to help you!
