I think it'd be nice to be able to refer to other layers of clothing directly underneath - without having to uncover other body locations entirely - similar to %t. I don't know exactly how clothing layering works - but it seems feasible.
This would cut out the bloat of exposing the entire @worn of another piece of clothing you're wearing underneath - while still being able to show that you're wearing it. At the moment, I prefer to wear coats or other items zipped purely to cut on unecessary description bloat.
%S is wearing a long coat. With the zipper undone, you can clearly see their %underlayer.
She is wearing a long coat. With the zipper undone, you can clearly see their mixlyfe t-shirt.