I was following the tutorial for making a basic rpg character and armor for that character (video for reference: https://www.youtube.com/watch?v=rzau6SFcNOk&t=665s). As I was going through it, I saw that my armor on the model was doing some weird stretching and I thought it might have something to do with weight painting and that helped a little bit but I am still having the stretching issue. Please let me know if you have any ideas to correct this issue.
SEE THE FILE BELOW THE IMAGE FOR THE FILE THAT CONTAINS THE MODEL