Need help closing my dress

Really? That’s odd, the link can be shared and downloaded by everyone. The loading is a bit slow indeed but it should work 🤔 perhaps it works after some time. 

I’m gonna try your method. Thanks!

You cannot select this edge loop because of MD's Remesh and exporting as Unweld. It is best to remake everything starting from MD because there are many other issues

- go to MD, select all patterns and undo Remesh. Convert topology to quads and keep Particle distance high, simulate;
- export the mesh as Weld;
- clone a dress of similar length, export the blend, open, rename to Reference;
- import your dress;
- In edit mode select everything with A, Select - Boundary loops, press F, Mesh - Face - Triangulate, Mesh - UV unwrap - Unwrap;
- transfer weights, uv_1 and vertex paint from the reference to your dress. Clean weights and Limit total, then rename the first uv map to uv_0;

- either use body parts under the rig or import a lingerie set, remove doubles on it, delete all areas covered by clothing;
- the your dress with the body, select uvs of the dress, assign a template, press S Y 0.5 to shrink them ti their original size. While putting them in free space, do not resize them individually unless the difference in quality is acceptable. Once done export the uv layout;
- split sharp edges;
- assign the cut, import into the 1 meshgroup package, import the layout as a temporary diffuse, test in-game;
- if everything is ok, bake textutres