What type of fashion accessory is designed to replace or enhance existing hair?

A wig is specifically designed to replace or enhance existing hair by covering the scalp and providing a full head of hair. Wigs can be made from synthetic fibers or natural hair and come in various styles, colors, and lengths, allowing individuals to completely change their appearance or cover thinning hair. They offer a convenient option for those looking to alter their hairstyle without the commitment of a permanent change.

Clip-in extensions, while also used to enhance hair, do so by adding length or volume to the existing hair rather than replacing it entirely. Hats and braids serve different functions unrelated to directly replacing existing hair. Hats are worn primarily for fashion or protection, and braids are a styling technique rather than an accessory.