A one-piece garment is a garment that forms a complete outfit in one piece. One-piece garments may be worn as lingerie or as outerwear. Some one-piece garments are skin-tight garments, others are loose garments. Many of the older ones are draped garments.

Examples include:

Loose one-piece garments:

  • boiler suit
  • dress
  • jump suit
  • loincloth
  • overalls
  • one-piece pyjamas (the vast majority of pyjamas are two-piece)
  • romper suit (for babies)
  • sari
  • sarong
  • ski suit
  • toga

Make-shift one-piece garment used when going to and coming from the shower, etc.
  • Bath robe
  • dressing-gown
  • towel

Skin-tight one-piece garments: