Fiber Content Labelling Rules for Imports

What Fiber Content Labelling Rules Require on an Imported Garment

A fiber content label must state each fibre by its recognised generic name, list the percentages in descending order by weight, and appear on the garment itself rather than only on the packaging. For imports into the United States that requirement comes from the Textile Fiber Products Identification Act; for the European Union it comes from Regulation 1007/2011. Get the fiber content label wording right once and the same format serves most markets, with country-specific additions layered on top.

The mistakes that cost sellers money are rarely about the fibre names. They are about ordering, decimals, and where the label physically sits.

Generic Names, Not Trade Names

Regulators recognise generic fibre names and nothing else. "Poly-cotton" and "bamboo" are not acceptable entries on a fiber content label in most jurisdictions; the correct entries are the underlying generic names with their percentages. A 60/40 cotton-polyester blend must read as cotton 60 percent and polyester 40 percent, spelled out, in descending order.

Viscose is a useful example because the marketing name and the legal name diverge, and a wrong entry can trigger a compliance query at import. Our explanation of viscose and rayon fabrics for custom apparel covers the naming conventions that apply to each market.

Even small components count. Elastane in a ribbed cuff, or a small percentage of a decorative fibre, usually needs a mention unless it falls under a de minimis threshold, and those thresholds differ between the US and the EU. When in doubt, list it.

Ordering and Rounding Rules

Descending order by weight is the rule, and tolerance matters. A fiber content label stating 95 percent cotton and 5 percent elastane allows a small manufacturing variance, but the stated order cannot invert. If a blend drifts past the tolerance band, the label is wrong even though nobody changed the specification deliberately.

Percentages must add to 100. Rounding is permitted within stated limits, and a fibre present below a stated threshold may be listed as "other fibre" in some markets. Write the rule you are applying into the tech pack so the mill applies the same one every run.

Blends sold as a single product make this harder, because suppliers sometimes quote yarn composition while the finished garment contains additional fibres from finishing. Ask which number the mill is certifying before you print it. Our overview of EU textile labeling rules for POD apparel sets out how the EU treats multi-fibre products.

Where the Fiber Content Label Must Sit

Most regimes require the fiber content label to be attached to the garment, permanently and legibly, in a position a buyer can find without unpacking it. A neck label or a side-seam label both work. A sticker on the poly bag does not satisfy the requirement, and neither does a line in the product description.

Custom labels introduce their own constraints. Very small hang tags and narrow neck labels limit how much text fits legibly, which is a real production problem rather than a design preference. Our guide to custom neck labels: options and compliance covers formats that hold the required wording.

Care symbols normally sit alongside fibre content, and the ordering conventions there trip up sellers who assume a universal system exists. Our comparison of care label symbols and global standards shows where the systems agree and where they diverge.

Fibre Composition Evidence Behind the Label

A fiber content label is a claim, and importers are expected to hold evidence for it. That evidence is normally a lab test report on the finished garment or a supplier declaration tied to a specific production batch. Certificates held only at yarn level prove less than sellers assume.

Keep the report with the production file. If a marketplace or a customs authority asks, the fiber content label must match the document word for word, including decimals. Our piece on eBay print on demand rules for custom apparel sellers shows how a listing-level compliance check reads the same underlying data.

Country Variations Worth Planning For

The EU requires fibre names in the language of the member state where the product is sold, which means a single fiber content label rarely serves every market. Post-Brexit UK requirements layer a separate conformity route on top. Our note on UKCA and UK compliance for custom apparel covers what changes for goods placed on the UK market.

Where a country also requires an importer address or a responsible person, that block needs space on the label too. Plan the layout with all required fields before approving artwork, because adding a field later means reprinting labels and re-tagging stock.

A Practical Label Checklist

Before you approve a run, confirm five things: every fibre appears under its generic name, percentages add to 100 and descend by weight, the fiber content label is attached to the garment permanently, the language matches the destination market, and the underlying test report sits in the production file. Those five checks catch most import queries.

Then build the label into the product setup rather than treating it as an afterthought. Labels are part of the product data a marketplace reads, and a clean fiber content label reduces both compliance risk and return rates driven by unexpected composition. Review how the label attaches and reads by examining custom product options across garment types before you finalise a range.

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