The most important part of a saddle fit is the sit bone (ischial tuberosities - the two spots you feel when sitting) width. Your saddle's #1 priority is supporting those bones. If it's is too narrow, then the pressure will be on the tissue between the bones causing numbness and discomfort.  If the saddle is too wide, it will cause you to chaff. Especially in the upper thigh areas and at higher cadence.  Most seat companies are now making their seats in widths and should have a device at your local shop for your to measure up with. Devices I've used will have memory foam for you to sit on allowing you to measure the distance between your sit bones. That distance will be the distance between the center of the two main pads on the saddle. Keep in mind that wider isn't always better! Some shops allow you to demo saddles before picking the one you want. Definitely take advantage of this! Some saddles may feel great at first, but can really be uncomfortable after 3o or 40 miles. Be sure to have your saddle adjusted right before taking it out for demo. Many people many choose to dislike a seat and give it a bad rap when in actuality, it's a great seat, they just had the adjustments all wrong. Play with your settings. Carry a tool with you so you can make adjustments as needed. Eventually you'll find a setup that works best for you. Quick tips for saddle comfort:

• If the saddle is too high, you'll find yourself rocking from side to side as you're pedaling.  This can result in irritation to the perineal area.

• Tilting the nose of the saddle down a bit will help alleviate some pressure but not too much. That will cause you to slide forward and apply more pressure on your hands and wrists.  The may result is numb hands and pain in the lower back.

• Stand up out of the saddle every so often and adjust your riding position. This keeps the blood flowing and give you a new micro-position on the saddle helping you to maintain a level of comfort on longer rides.

• Some men find it more comfortable to align their saddles slightly off to the right or left depending on the arrangement of their downstairs mix-up.