For our "OKAY" MoCap we searched a lot for a physically correct working strap bikini. There are a few ones out there actually wrking nice and smooth. Yours is one of them. Although it has some minor issues in collision detection as well as a bit of more offset it´s easy to fix it using the collider editor and adjust some physical parameters in game . Anyway you created a very unique style there. A work of quality and was surely time intense to create. Of course 5 stars from us! keep it up :)