Sustainable and Recycled Yarn Options for Knitwear Brands

Sustainability has moved from a nice-to-have to a buying criterion for many knitwear customers, and recycled and responsible yarns are at the center of that shift. For B2B brands, building a credible sustainable knitwear program means understanding the yarn options, the certifications that back claims, and how to avoid greenwashing. This guide covers what buyers need to know.

Sustainability claims are only as strong as the certification behind them. In knitwear, the yarn and its paperwork are where credibility is won or lost.

Recycled yarns are the most common entry point. Recycled polyester (rPET) made from post-consumer plastic is durable and widely available; recycled wool and cotton reclaim fibers from textile waste, reducing the impact of virgin production. Recycled fibers often blend with virgin fiber to maintain quality, so confirm the recycled percentage and how it is verified.

Credible sustainability rests on certification, not marketing language. The key standards in knitwear include:

• GRS (Global Recycled Standard): verifies recycled content and supply chain
• RWS (Responsible Wool Standard): animal welfare and land management
• GOTS: organic fibers and processing
• OEKO-TEX: tested for harmful substances

Ask your factory which certifications apply to your yarn and request the documentation. Claims without certification are a greenwashing risk.

Sustainable yarns can match conventional handfeel, but quality varies, so test the actual yarn for pilling and durability as you would any other, see our quality control checklist. Cost is often slightly higher, though the gap is narrowing, and many customers accept it for a credible story. Factor this into your cost planning.

• Choose certified yarns and keep the documentation
• State recycled percentages accurately, do not overclaim
• Test sustainable yarns for quality like any other
• Tell the story honestly, certification first, marketing second
• Start with one or two proven sustainable yarns rather than a full overhaul

Licheng Knitwear develops knitwear in recycled, organic and responsible yarns with supporting certification for B2B brands building credible sustainability programs. Request a quote or browse our products.