First you need to install EMFsp (https://www.gta5-mods.com/tools/emfsp-easy-mod-folder-for-sp-player-mods)
After that, drop all files in: mods\update\x64\dlcpacks\EMFsingleplayer\dlc.rpf\x64\streamedpeds_players.rpf\player_one
Then use a menu like Simple Trainer (https://www.gta5-mods.com/scripts/simple-trainer-for-gtav) to use the hoodie in game.