Cutout mesh body with open variant and usual presets for materials.
Normal variant has sim off but you can turn it on to use undress.
Open variant has sim on and can also be undressed further.
spec, Normal and Sim maps.
To change the color just use the usual color picker, to keep the satin look make sure the spec color matches the diffuse.
I created the clothing models myself and the normal maps.
All photos are taken in VR, no postwork. The nice lady in the photos is my own custom preset...
