A skin-tight garment is a garment that is held to the skin by elastic tension. Many skin-tight garments are also one-piece garments.

Skin-tight garments are fetishized by some people, perhaps on the basis that the garment forms a "second skin" that acts as a fetishistic surrogate for the wearer's own skin. The most common forms of this are spandex fetishism and rubber fetishism, in which the skin-tight material is also shiny.

Skin-tight garments are often depicted as "futuristic" clothing in science fiction: see also sex in science fiction.

Examples include:

  • bodystockings
  • catsuits
  • diveskins
  • leotards
  • one-piece swimsuits
  • stockings
  • tights
  • unitards
  • wetsuits