For the mod to work, you need a model from this fashion
Setting: 1. Open OpenIV. 2. Go to x64v.rpf/models/cdimages/streamedpeds_players.rpf/player_one. 3. Back up uppr_031_u.ydd and each uppr_diff_031 _ * _ bla.ytd you replace. 4. In OpenIV when replacing the texture, go to the properties in the top left corner, set the MipMaps level to 1 and save. 5. Extract the files from the downloaded archive to any folder. 6. Be sure to enable edit mode. 7. Replace the file with a Supreme T-shirt.