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| Decision field | Open accessGOTS Certified SuppliersGlobalRemove | Open accessYarnSubGlobalRemove | Open accessASDP Sewing Professional DirectoryUnited States · North AmericaRemove | Free accountThreadloop Sewing Pattern DatabaseGlobalRemove |
|---|---|---|---|---|
| Decision fit | ||||
| Primary job | Check standards | Choose materials | Source production | Find patterns & fit |
| Area | Materials | Yarn | Production | Patterns & fit |
| Best for | Checking GOTS certification records | Replacing a discontinued or unavailable yarn | Finding a US sewing or patternmaking professional | Searching current and out-of-print sewing patterns |
| Know before using | A company result is not a blanket approval; confirm the certificate scope, validity, facility, process, product, and transaction documentation for the exact purchase. | 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 a member referral directory, not a Stitch Authority roster or approval. ASDP states that it makes no representations, warranties, or guarantees and assumes no responsibility for members' products or services. Membership, a code of ethics, a profile, or referral availability does not establish credentials, experience, capacity, insurance, price, accessibility, workmanship, schedule, or project fit. Check those points, references, scope, samples, terms, and remedies directly. | Community members add and quality-control the records, so confirm sizing, measurements, fabric suggestions, format, availability, errata, license, and purchase terms with the designer or publisher. Adding an entry to a stash does not provide the pattern files. Saved searches and private PDF storage are paid Plus features, and a listing or review does not establish pattern accuracy or fit. |
| Practical access | ||||
| For | Apparel brands | Makers | Both | Makers |
| Location or jurisdiction | Global | Global | United States · North America | Global |
| Access | Open access | Open access | Open access | Free account |
| Format | Directory | Reference | Directory | Community |
| Source type | Official registry | First-party platform | Industry organization | Community database |
| Source and review | ||||
| What the source establishes | The official GOTS search exposes certified entities by country, field of operation, product category, and certification detail, including processing and trading scopes. | 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. | ASDP's public directory searches members currently accepting referrals by location and professional specialty, including patternmakers, production sewers, designers, teachers, tailors, alteration specialists, and fabric or materials suppliers. A result opens a member profile and a contact action, and the page identifies the population as association members in good standing. | Threadloop's official guide describes an independent, fully crowdsourced database covering available and out-of-print sewing patterns. Its search supports pattern type, fabric type, age group, body type, cup size, level, format, file features, language, measurements, availability, and other filters; members can also track a stash, wishlist, projects, reviews, and discussions. |
| Linked page reviewed | Jul 15, 2026 | Jul 21, 2026 | Jul 21, 2026 | Jul 21, 2026 |
| Next review due | Oct 13, 2026 | Jan 17, 2027 | Jan 17, 2027 | Jan 17, 2027 |
| Inspect | ||||
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