CACrown ArchivesThe cinema collection
Menu
Research dossier · General Reference

Infant bodysuit

type of infant clothing

Cross-disciplinary reference desk with index cards, atlas, dictionary and catalogue
General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionApr 24, 2026
Entity authorityQ2069823
Source-derived summary

An infant bodysuit or onesie (American English) is a garment designed to be worn by babies much like a T-shirt; they are distinguished from T-shirts by an extension below the waist, with snaps that allow it to be closed over the crotch. The purpose of the opening at the crotch is to facilitate access to the infant's diaper as well as preventing the garment from riding up the infant's body and exposing skin. Like T-shirts, infant bodysuits come in a wide variety of designs and may be worn as undergarments or as outer shirts.

The modern infant bodysuit was first designed in Chile in the early 1950s by Susana Duniau, a French-born Chilean seamstress. After giving birth to twin daughters, Duniau created a practical one-piece garment with snap fasteners to hold cloth diapers in place while keeping the baby warm. The design, locally known as the pilucho, quickly gained popularity in Chile and was later exported to the United States and Europe through the clothing brand Opaline. Because Chile at the time lacked intellectual property laws, Duniau's husband, Enrique Brito, registered the patent in the United States. The pilucho became the direct precursor of what is now globally known as the infant bodysuit or onesie.

Synonyms

Other names of this outfit include onesies (a registered trademark often used in the United States as if it were generic), creepers, diaper shirts, or snapsuits. If the bodysuit is sleeveless, it may also be referred to as a vest (British English only).

Editorial summary

“Infant bodysuit” enters the record as type of infant clothing. Crown Archives preserves that source wording while asking what Infant, bodysuit and type can confirm, complicate or overturn.

Editorial reviewA practical starting point whose main value is the path it opens into stronger specialist and primary sources. The current 249-word lead offers orientation but no explicit four-digit date, so chronology should not be assumed. The selected authority fields contribute no independent date. Its strongest next move is a source search built around Infant, bodysuit and type.
Editorial analysis

Why this record matters

“Infant bodysuit” is worth following because a concise public description often conceals a longer documentary argument. Here, Infant, bodysuit and type provides the most credible route into that argument.

Evidence profile

Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Apr 24, 2026. The linked authority identifier is Q2069823. None of the 0 selected statements returned an explicit reference.

Critical limits

Overview language is designed for orientation and should not be treated as a substitute for the evidence cited beneath it. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

How to read it

Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.

Best used for
  • Subject orientation
  • Search vocabulary
  • Locating named sources
Verify next

The closest primary source, responsible institution and strongest cited specialist reference.

Three-step research path

  1. Establish the record: confirm the title “Infant bodysuit”, its source revision and the description used here.
  2. Expand the search: follow Infant bodysuit primary sources, Infant bodysuit archive and Infant research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

  1. Which source most directly establishes the central claim about “Infant bodysuit”?
  2. What terminology or title could unlock a more precise catalogue search?
  3. Which institution is responsible for the underlying evidence?
Subject index

Search terms from this dossier

Source & attribution

This entry incorporates text from Infant bodysuit” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.