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Decision fieldOpen accessGOTS Certified SuppliersGlobalRemoveOpen accessApparel Grade-Rule & Size-Run Validation RecordGlobalRemoveOpen accessYarnSubGlobalRemoveFree accountWoolmark Learning CentreGlobalRemove
Decision fit
Primary jobCheck standardsFind patterns & fitChoose materialsLearn techniques
AreaMaterialsPatterns & fitYarnTechniques & repair
Best forChecking GOTS certification recordsAuditing inherited grade rules or controlling a new multi-size pattern release from approved targets through sample evidenceReplacing a discontinued or unavailable yarnStructured wool education
Know before usingA company result is not a blanket approval; confirm the certificate scope, validity, facility, process, product, and transaction documentation for the exact purchase.The record does not create a production grade, supply universal increments or breakpoints, validate a CAD file or fit population, reproduce licensed standards, or replace qualified anthropometric, pattern, technical-design, fit, quality, accessibility, safety, statistical, and user-research review.A suggested match is a data-based shortlist, not proof that the yarn suits the pattern or maker. Yarn records can be incomplete or wrong, prices and availability vary by market, and the site uses affiliate links. Confirm the required gauge, total length, fibre behavior, construction, care, color, dye lot, accessibility, and seller terms, then make and assess a representative swatch before committing.This is Woolmark-operated education focused on wool, not a neutral comparison of all fibres or processing systems. A completion badge records coursework, not independent proof of production competence, product performance, environmental impact, or compliance. Confirm technical values and local requirements against current standards before production use.
Practical access
ForApparel brandsApparel brandsMakersBoth
Location or jurisdictionGlobalGlobalGlobalGlobal
AccessOpen accessOpen accessOpen accessFree account
FormatDirectoryStitch AuthorityReferenceReference
Source typeOfficial registryStitch AuthorityFirst-party platformIndustry organization
Source and review
What the source establishesThe official GOTS search exposes certified entities by country, field of operation, product category, and certification detail, including processing and trading scopes.The guide cites current ISO body-table, size-designation, and garment-measurement boundaries plus two peer-reviewed studies that tested the relationship between conventional grade rules, anthropometric evidence, and garment fit; it requires product-specific target deltas and validation instead of publishing universal increments.YarnSub's official FAQ says its matching software compares gauge, texture, yarn weight and density, fibre content, and fibre qualities such as drape and softness. Discontinued yarns remain searchable as starting points but are excluded from suggested replacements, and each yarn page provides a route to report source-data problems.The current Woolmark Learning Centre library publishes free account-based coursework with module counts, completion times, progress tracking, knowledge checks, and supporting resources. Its wool programs cover fibre science, raw-wool and yarn processing, dyeing and finishing, woven textiles, knitwear, product quality, and wastewater management for learners and facilitators.
Linked page reviewedJul 15, 2026Jul 16, 2026Jul 21, 2026Jul 21, 2026
Next review dueOct 13, 2026Jul 16, 2027Jan 17, 2027Jan 17, 2027
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