Paste the files to this location
mods/x64v.rpf/models/cdimages/streamedpeds_players.rpf/player_one
Before installing the mod, make sure that the x64v.rpf file is in the mods folder.
For t-shirts, you can look at the t-shirts section in Franklin’s closet. For shirts, you can look at the clothing store at Menyoo.
Credits:
bntk0