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| Decision field | Free downloadbluesign System Partner ListsGlobalRemove | Open accessApparel Grade-Rule & Size-Run Validation RecordGlobalRemove | Free accountThreadloop Sewing Pattern DatabaseGlobalRemove | Open accessFabric Purchase PlannerGlobalRemove |
|---|---|---|---|---|
| Decision fit | ||||
| Primary job | Check standards | Find patterns & fit | Find patterns & fit | Choose materials |
| Area | Materials | Patterns & fit | Patterns & fit | Materials |
| Best for | Starting a bluesign-aligned supplier check | Auditing inherited grade rules or controlling a new multi-size pattern release from approved targets through sample evidence | Searching current and out-of-print sewing patterns | Documenting how a pattern-based fabric quantity becomes an order length |
| Know before using | Partner status is not a blanket product claim; use the current official list and confirm the exact facility, material, process, or chemical-input scope. | 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. | 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. | The planner adds and rounds user-entered lengths; it does not create a cutting layout, infer shrinkage or matching allowances, compensate for a width change, establish usable width, or prove that the order quantity is sufficient. |
| Practical access | ||||
| For | Apparel brands | Apparel brands | Makers | Makers |
| Location or jurisdiction | Global | Global | Global | Global |
| Access | Free download | Open access | Free account | Open access |
| Format | Directory | Stitch Authority | Community | Stitch Authority |
| Source type | Official registry | Stitch Authority | Community database | Stitch Authority |
| Source and review | ||||
| What the source establishes | bluesign publishes current system-partner lists and approved-input references that can support facility, material, chemical, dyeing, and finishing checks. | 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. | 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. | NIST defines 1 yard as exactly 0.9144 metre. Sewing & Craft Alliance guidance ties an applicable cutting layout to the exact view, size, fabric width, and nap condition and recommends layout work when listed conditions do not fit the project. |
| Linked page reviewed | Jul 15, 2026 | Jul 16, 2026 | Jul 21, 2026 | Jul 16, 2026 |
| Next review due | Oct 13, 2026 | Jul 16, 2027 | Jan 17, 2027 | Jul 16, 2027 |
| Inspect | ||||
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