GRS
At Superstainable, we use GRS-certified (Global Recycled Standard) polyester, ensuring that our materials come from verified recycled sources like post-consumer plastic and textile waste. This certification guarantees traceability, responsible production, and ethical labor practices, setting a higher standard than conventional polyester.
By choosing GRS-certified polyester, we ensure high-quality performance, durability, and material integrity, while reducing dependence on virgin synthetic fibers. Shop responsibly with Superstainable and experience premium recycled materials with full transparency.
Here are six key reasons why RWS (Responsible Wool Standard) certification is important compared to conventional, uncertified merino wool:
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GRS Certification
GRS-certified (Global Recycled Standard) polyester ensures that every stage of production, from sourcing to the final product, follows strict guidelines for responsible material use and processing. This certification guarantees that the polyester comes from verified recycled sources, reducing reliance on virgin raw materials and ensuring traceability throughout the supply chain.
GRS certification ensures that polyester fibers are sourced from post-consumer and post-industrial recycled materials, such as discarded plastic bottles and textile waste. This guarantees that the polyester used in clothing and gear is made from authentic recycled content rather than new synthetic materials. The certification also sets a minimum threshold for recycled content, ensuring that brands using GRS-certified polyester meet strict requirements.
Unlike conventional polyester, which is often produced without oversight on material origins, GRS-certified polyester must follow strict guidelines throughout processing. This includes responsible chemical management, wastewater treatment, and controlled energy use during manufacturing. These requirements help ensure that recycled polyester is produced under high standards while maintaining performance and durability.
Transparency
GRS Certification
GRS certification requires full traceability, meaning that every stage of the polyester’s journey—from recycling collection to fabric production—is documented and verified. This level of oversight prevents false claims about recycled content and gives both brands and consumers confidence in the authenticity of the materials used.
Beyond material verification, GRS certification includes strict social criteria. Certified manufacturers must adhere to guidelines ensuring safe working conditions, fair wages, and ethical labor practices. Unlike uncertified polyester production, where working conditions can vary greatly, GRS ensures accountability for the treatment of workers involved in processing and manufacturing.
GRS-certified polyester maintains the same performance benefits as conventional polyester, including durability, moisture management, and lightweight functionality. However, because of the strict quality controls in place, GRS-certified polyester ensures that recycled fibers meet high industry standards while offering a responsible alternative to virgin synthetic materials.
For brands and consumers, GRS certification provides assurance that the polyester used in products comes from responsibly managed recycled sources. Unlike conventional polyester, which may have an unclear or unverified origin, GRS-certified materials guarantee authenticity and transparency at every stage. By choosing GRS-certified polyester, companies and customers support a system that prioritizes responsible material use and clear accountability in textile production.
