I’m retrofitting clothing models to characters for real-time (unity), so I have to keep polygons to a minimum - so models are single sided. However, they also have to be a little bit offset from the character model, so when the character is animated, there is no bleed through (due to some significant differences in topology). Due to this offset, I sometimes need a lip and some back-facing polygons, to avoid “straps going nowhere” issues when viewed at certain angles. It’s hard to post a pic showing the specific issue, because it’s mostly noticeable in animations. But your help got me going. Thanks!