I’m only a newbie at clothing meshing and I am not sure if I am correct about this but I don’t think the uvmap is causing the clipping, I would probably go back in to the 3D editor and have a look at the mesh and check from the sides to see if there are any parts of the mesh sticking out where its not meant to be which could be causing the clipping. 

beautiful work Bruno, I can't wait until they are available for download.