Sizing: True to size. I have a 32 inch waist, and a medium fits properly.
Padding: Padding is generous and works well. It's stiff and looks very awkward when wearing it off the bike at first but will conform to the saddle with use. You'll want to break the padding in before going out for a ride in public.
Material: Material is thin and works for warm weather use. Unsure how well it'll hold up if I fall.
Stitching: They were flat and did not chafe during a ride.