Mod for Prompto's outfit in the DLC and basic winter outfit in the main game. Sadly the glasses and skull can only be accessed in the DLC at the present time.

Go to your FinalFantasyXV\Datas folder and replace folder "Character" with the one in the ZIP file. When Prompted to replace files, say yes.

This mod replaces files in the following folders:
character\nh\nh02\model_040
character\nh\nh02\model_041
character\nh\nh02\model_042
character\nh\nh02\model_043

Remember to always backup your files first!