Obi Suit - Questions about cloth in characters

[Rettosukero]

No need to (unless your high poly mesh is really high poly). You can use the inner part of your mesh to "drive" an let the outer layer be "driven": This is what is done in the trenchcoat sample scene.

I wish I could use highpoly mesh but its so fat that computer crashes while editing particles and painting skin.
I will try lowpoly mesh.
Any advices?