For me any T-Shirt, or any underpants being worn
Observed results:
Nothing but my skin colour, included screenshot (to bug report) shows nothing but skin with flared legs.
If I take off the T-Shirt, and the underpants, then I can see my other clothes (the pants and the undershirt). It's as if adding them is causing SL to make the whole thing transparent.
However, if I go into Appearance then the clothes appear just fine.
This is seen by everyone around me, even though I'm wearing clothes, no-one can see them unless I remove the shirt (to see clothes on my top half) or the underpants (to see clothes on my bottom half).
The T-Shirt in question has the following UUID:
<snipped>
Other shirts leave my bikini-top visible, but don't appear themselves.
Expected results:
Wearing more clothes shouldn't make me MORE naked! Heh.
Seems like more skin baking issues, bah. Does this mean if I go into a PG sim naked I can argue "I am wearing clothes, they're just invisible?"

This is the Mac client, but PC clients are seeing the same thing, for me anyway. Anyone else affected by this?
I've done the usual cache clean, re-logging etc.