Revenstein

I apologize if I'm not posting this question in the right forum; however, I recently purchased a kit for a type of jacket and I wanted to make it so everything but the sleeves are invisible. After some trial and error, I managed to have an alpha that showed only the sleeves, and I have tried saving the texture for the mesh coat in many different types of png format, all looks good...except for the breasts of my avatar. Invisible space around where the bust of the coat would be is cutting into the breasts of my avatar and I'm not sure how to fix that issue. I don't have problems with the invisible parts of the mesh outside of the clipping of the bust, I've done my research and thought this might be an alpha sorting glitch issue?