| Fibre names and percentages | Use only fibre names listed in Annex I and state all constituent fibres by percentage of total weight in descending order, subject to the Regulation's defined exceptions. | Material and component specifications, composition evidence, Annex I name check, reviewer decision, and released copy. | Using a trademark, supplier shorthand, or marketing term in place of the authorised fibre name. |
| Pure-fibre wording | Use “100%”, “pure”, or “all” only when the textile product meets the Regulation's single-fibre conditions. | Composition basis, treatment of permitted extraneous fibres, approved wording, and product scope. | Rounding a blend to 100% or copying pure-fibre wording across a changed material. |
| Garment components | Identify textile components with different compositions. The Regulation provides a limited exemption for certain components that are not main linings and represent less than 30% of total product weight. | Component map, weight basis, main-lining decision, exception rationale, and approved component labels. | Combining shell, lining, gusset, or another material into one unsupported percentage statement. |
| Animal-origin parts | When present, use the required statement that the product contains non-textile parts of animal origin. | Bill of materials, trim declaration, supplier evidence, translated statement, and physical proof. | Assuming a small leather, horn, shell, or other animal-origin part can be omitted without review. |
| Language market | Provide the composition description in the official language or languages required where the product is made available to consumers, unless that Member State provides otherwise. | Country list, language matrix, controlled translations, local review, artwork revision, and SKU mapping. | Using one English-only label for every EU destination or treating an EU-wide store as one language market. |
| Physical and online display | Keep the physical label durable, legible, visible, accessible, and securely attached; show the fibre composition clearly before ecommerce purchase. | Label specification, physical sample, legibility review, product-page capture, channel mapping, and approval. | Publishing translated composition only after checkout or hiding it inside an image, accordion, or file that the buyer may not see. |