The invention relates to a water-soluble isolating layer underwear with a prompt damage structure, which is suitable for underwear, bras, bikini, four-corner pants and the like. The clothes comprise a clothes body and a water-soluble isolating layer arranged in a close-fitting contact area, the isolating layer is made of
polyvinyl alcohol, polyoxyethylene, water-soluble
cellulose or alginate soluble materials and can have the characteristic of being soluble in cold water or hot water, and an attaching layer is formed in a film covering, spraying, blade
coating or
hot pressing mode. The
isolation layer is provided with a prompt structure, the prompt structure comprises falling prompt, image-text
exposure, image-text disappearance, color change, sticker falling,
laser etching or embroidery falling and the like, and the prompt structure is used for generating irreversible change after wearing or contacting with a
liquid medium, so that fitting identification is realized, and return
pollution and secondary sales risk of underwear are effectively reduced.