Maybe they are Default replacement one not quite working.
You can delete those clothes from within the game in CAS btw.
You can also use Delphy download organizer tool, with it, you can scan your download folder and it will tell you if you have orphan cc (like missing a mesh or a mesh without any recolors). You can also sort all your downloads by type with it, a very useful tool. You can get it here:
Delphy's Download Organiser