A buyer's guide to the certifications that matter in knitwear — OEKO-TEX, RWS, GRS, GOTS and BCI — what each one certifies, when you actually need it, and how chain-of-custody and transaction certificates prove a material claim.
Unser Team unterstützt Ihre Marke vom Konzept bis zur Lieferung.
Projekt besprechenA buyer's guide to the certifications that matter in knitwear — OEKO-TEX, RWS, GRS, GOTS and BCI — what each one certifies, when you actually need it, and how chain-of-custody and transaction certificates prove a material claim. This guide walks you through the manufacturing journey with Licheng Knitwear.
As sustainability and chemical-safety expectations rise, more buyers — especially in Europe and North America — are asked by their own customers and retailers to back up claims with certifications. For knitwear, a handful of standards come up again and again: OEKO-TEX, RWS, GRS, GOTS and a few others. This guide explains what each one actually certifies, when you genuinely need it, and how the supply chain proves it — so you can ask the right questions instead of treating "certified" as a vague badge.
A certification is only meaningful with a valid, current certificate that names the right scope and the right entity. Always ask for the document — a Scope Certificate and, for material claims, a Transaction Certificate — not just a logo on a website.
💬 Sourcing this for an upcoming project? Request a free quote → · MOQ 30 pcs · Sample in 7–15 days · WhatsApp us
| Standard | What it certifies | When you need it |
|---|---|---|
| OEKO-TEX Standard 100 | The finished textile is tested for harmful substances | Broadly useful; reassures on chemical safety for skin-contact garments |
| RWS (Responsible Wool Standard) | Animal welfare and land management in the wool supply chain | Wool products making welfare/"non-mulesed" style claims |
| GRS (Global Recycled Standard) | Recycled content + social/environmental criteria, with chain of custody | Products claiming recycled fibre (e.g. recycled polyester or wool) |
| GOTS | Organic fibre content + environmental/social criteria | Organic cotton/wool programs |
| BCI (Better Cotton) | Mass-balance sustainable cotton sourcing | Cotton programs at retailer request |
This is the part buyers most often misunderstand. Certifications generally attach to fibres, processes and transactions, not simply to a factory:
So a knit manufacturer doesn't "own" a recycled-wool claim by itself — the claim is only valid if the yarn is certified and the documentation flows through the chain to your order.
If you're not making a specific claim, OEKO-TEX Standard 100 on the material is a common, practical baseline for chemical-safety reassurance.
1. Decide the claim you need to make — that determines the standard. 2. Specify certified yarn up front; material claims start at the fibre. See the sustainable and recycled yarn guide and the yarn material guide. 3. Ask your supplier to source certified yarn and to pass through the Transaction Certificates for your order. 4. Keep documentation on file for your retailer or compliance team.
Licheng Knitwear can source certified yarns (such as recycled or responsible-wool options) and support buyers whose programs require specific standards, working with accredited yarn suppliers so the relevant certificates and transaction documents accompany your order. Certificates themselves are issued per program by accredited certification bodies — we help you specify and document the right ones rather than asking you to take a claim on trust.
Tell us the standard your buyer or retailer requires and the yarn you have in mind, and request a quote — we'll propose a compliant material and development path. You can also explore our merino wool and cashmere sourcing guides, or browse product directions to start from a style.
---
If you're planning a real project around any of the points above, we'd be glad to take a quick look. Send a short brief and we'll come back within one business day with a practical direction, MOQ + lead time estimate, and a sample plan if it makes sense.
→ [Request a free quote](/request-quote) · [WhatsApp us](https://wa.me/8615170244792) · info@lcgarment.cn
Fordern Sie einen Katalog an oder senden Sie heute eine Anfrage. Unser Team antwortet innerhalb von 24 Stunden.
Men's Cardigans
