From GameWatcher: “Shadow of the Tomb Raider is out this week, here’s everything we know about it, and one of the most fun additions is hidden in the menus. We show you how to get Shadow of the Tomb Raider Classic Skins including her PS1 Outfit and her Angel of Darkness Outfit!”
Source: N4G PC Shadow of the Tomb Raider Classic Outfits: How To Get PS1 and Angel of Darkness Skins