Ah i was sure it was a mod yeah, thanks for clearing that up ! I'll look up your guide.

If you mean something like a link to a download for a mod, then no. This outfit actually already exists within the game files, and can be accessed by either editing the game files to swap it in, like is being done in the screenshot, or by editing your save file to make it the active outfit. I have a guide posted that can walk you through either of these processes.

Hey this looks awesome ! Would you happen to have a link for it ?