Well, this is the list I've compiled from going through the auno.org database. I've deliberately left out tattoos for the moment (given their naming system I'd rather do them separately if I do so). Also tried to avoid the nodrop or nearly impossible to get stuff.
Rubi-Ka Clothing Checklist <-- warning, it's a Word Document designed for printing out and marking with a pencil.
If I've missed any items or there are some on there that aren't actually in game please let me know. My definition of 'clothing' was QL 1 things that aren't armour and don't have stats. I took a bit of wiggle room with the last point so there are some things that have, say, +15 swimming (one of the swimwear) or similar. I consider them possible buffing items in exceptional circumstances but normally used for social purposes.
Should I put screenshots of the clothes up in this thread or make a new one somewhere?
(For the record, there are 498 items on that list.)