Weird mesh in game

Hey so i am having an issue with weird stretching and clipping of garments once in game, ive read other posts on here over the past few days and have tried the proportional editing, as well as looking at weight paint issues, and ive made sure that parts of the nude mesh underneath the garment is deleted... so i am a little stumped and at this point i am wondering if its an actual texturing issue..


Here are the files:

When the top half is stretched this is what it looks like in game:

drive.google.com/file/d/1PJz6E9heFalIlxXeRqvGv984mdWUu-2L/view?usp=sharing



When its not stretched:

drive.google.com/file/d/1rFiGYseeVj_EuDqQFQeDk9wRTjraATa4/view?usp=sharing


Also happening:

drive.google.com/file/d/18JCWigbbbe84tmf-_9gcLqvmpn-Ju6ac/view?usp=sharing




Blender File:

drive.google.com/file/d/1T1PKzk5xPnVpY3hK5nyYxN7mm5HMZEKc/view?usp=sharing