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| Decision field | Free downloadbluesign System Partner ListsGlobalRemove | Open accessYarnSubGlobalRemove | Open accessSeam Allowance ConverterGlobalRemove |
|---|---|---|---|
| Decision fit | |||
| Primary job | Check standards | Choose materials | Find patterns & fit |
| Area | Materials | Yarn | Patterns & fit |
| Best for | Starting a bluesign-aligned supplier check | Replacing a discontinued or unavailable yarn | Working between pattern systems |
| 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. | 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. | A unit reference; the correct allowance depends on material, seam type, and production method. |
| Practical access | |||
| For | Apparel brands | Makers | Both |
| Location or jurisdiction | Global | Global | Global |
| Access | Free download | Open access | Open access |
| Format | Directory | Reference | Stitch Authority |
| Source type | Official registry | First-party platform | 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. | 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 linked tool or guide is maintained inside Stitch Authority and was checked against its current public interface. |
| Linked page reviewed | Jul 15, 2026 | Jul 21, 2026 | Jul 15, 2026 |
| Next review due | Oct 13, 2026 | Jan 17, 2027 | Jul 15, 2027 |
| Inspect | |||
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