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Decision fieldOpen accessAIC Find a ProfessionalUnited States · North AmericaRemoveOpen accessHook & Needle Diameter ReferenceGlobalRemoveOpen accessApparel Grade-Rule & Size-Run Validation RecordGlobalRemove
Decision fit
Primary jobRepair & conserveLearn techniquesFind patterns & fit
AreaTechniques & repairYarnPatterns & fit
Best forFinding professional textile or costume conservation help in the United StatesChecking which U.S. alias the current Craft Yarn Council table gives a known metric package size before confirming project gaugeAuditing inherited grade rules or controlling a new multi-size pattern release from approved targets through sample evidence
Know before usingThe directory is opt-in and excludes qualified people who do not list; designation does not guarantee availability, price, or suitability for a specific object or treatment.The reference is not a dimensional measurement, manufacturer inspection, UK or Canadian conversion, steel-hook chart, tool recommendation, yarn assignment, gauge result, or proof that a proposed tool will produce the required fabric.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.
Practical access
ForBothMakersApparel brands
Location or jurisdictionUnited States · North AmericaGlobalGlobal
AccessOpen accessOpen accessOpen access
FormatDirectoryStitch AuthorityStitch Authority
Source typeIndustry organizationStitch AuthorityStitch Authority
Source and review
What the source establishesAIC says listed Professional Members complete a peer-reviewed application and may be searched by specialty, material, service, location, or name.The lookup reproduces the current public Craft Yarn Council metric and U.S. alias rows and follows the Council's warning that company letter and number labels vary; blank aliases remain blank instead of being inferred.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.
Linked page reviewedJul 16, 2026Jul 16, 2026Jul 16, 2026
Next review dueJan 12, 2027Jul 16, 2027Jul 16, 2027
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