
DM_Blake |

Some outfits give bonuses on skill checks. However, fancy outfits worn under armor would look strange - it would be entirely within the GM's right to reasonably limit or eliminate outfit benefits for this reason. For example, a courtier's outfit essentially gives a +2 on Diplomacy checks made against nobles and courtiers, but wearing armor with the outfit could reasonably negate that penalty as such people would look at the armor-clad individual as a silly commoner.
Some light armor might be wearable under a bulky outfit. Again, that's up to the GM. Probably not with a courtier's outfit, and certainly not with a courtesan's outfit, but again, each GM might decide differently.