Glitched out feet on bodymesh

Hi. Your outfit comes with shoes, meaning you should clone and use as a reference something that also comes with shoes.
Your outfit should be split into meshgroups the same way the original is. For example, the item you cloned is split in the calf area to interact with high boots. Since your mesh already comes with shoes, it does not need to do this. If you clone similar mesh, it will not be split in the calf area.
Your outfit has no proper uv_1 map, meaning it will not morph properly.
You should utilize uv space in the uv_0 map more efficiently. Bigger uv islands = better quality. Delete as much of the body underneath as possible to free more space. You can take the whole space meant for clothing and shoes
There are some faces with flipped normals

Here are blend and package files
You will need to edit the diffuse texture though. I rotated some parts only by 90-180 degrees to preserve quality.