5' 7" 195, so thicker than you. Boure and Voler are good choices, IMO. Aerotech Designs are another, especially the Pro USA model, though I personally have trouble with that one because the seam of the pad aggravated a saddle sore.
Lots of discussion here about shorts, and you'll see Voler and Aerotech mentioned positively a lot, so they're doing something wright.