To use this outfit in your game, you generally need a mod manager.
is a popular community-created mod designed to provide players with highly customizable, minimalist aesthetic options for the protagonist. Mod Features and Customization Claire Outfit - Bare Essentials 1 PMature
The term "Bare Essentials" suggests an outfit that's minimalist, perhaps focusing on basic or fundamental pieces that are versatile and timeless. For a mature take on this concept, you might consider: Claire Outfit — Bare Essentials 1 P Mature