How does the clothing a char wear work exactly?

[Kalshion]

I've been trying to figure this out, I have several different outfit sets that I have for my colonists. However, I am wondering if I might be doing somethign wrong here.

One of my outfit sets has a character wearing power armor and helmet, only. But later on I see them put on a duster.

What I am getting at with my question is what all can a character wear at any given time? For example, if they wear power armor/helmet, can they also wear something else? That kind of stuff.

[Shurp]

http://rimworldwiki.com/wiki/Clothing#Tables

You can wear one torso onskin, one legs onskin, and one torso shell.

You can wear any armor over this.  You can wear a helmet or a hat.  (I recommend the helmet)