Well, I fixed the issue. Turns out I was somehow using the UV mesh from a previous version of Breeze, whereas Kendo's version just uses vanilla clothes. I have no idea why mine was like that, but he sent me an outfitm for Wastelandclothing05, and that fixed it.
EDIT: So, apparently the issue was all male armor meshes were based on Roberts body, and I didn't know which mod was causing it. In the end I just patched all the male outfit nifs to fix the issue.