The trishorts have only a minimal fleece pad. They're specifically designed so that you can swim and run in them as well as bike. Like I said the Zoot shorts are VERY compressive.

The aerotech shorts are full on bike shorts with a multilayer pad. The material, while supportive, doesn't make you feel like an overstuffed sausage in a tight casing.

I have a 30" waist and @42" hips. The woman's large fits me perfectly. The sizing runs pretty true.