Top 10 GRS Certified Clothing Manufacturers for Sustainable Apparel Brands

 The increasing global focus on sustainability and traceability in apparel sourcing makes partnering with a GRS certified clothing manufacturer a strategic advantage for brands. Such manufacturers ensure credibility, responsible production, and readiness for evolving regulations. To assist you in identifying reliable partners, this article lists ten clothing manufacturers holding GRS certification.

1. What Is GRS Certification and Its Benefits for Brands

The Global Recycled Standard, or GRS, is an international, voluntary certification that verifies recycled content in products and ensures responsible manufacturing practices across the entire supply chain. Managed by Textile Exchange, GRS assesses recycled material claims, chain of custody, environmental and social standards, and chemical restrictions. It is applicable to products with at least 20% recycled content, with 50% required for on-product labeling, ensuring transparency from raw material to finished product.

Working with a GRS certified clothing manufacturer offers several key benefits for brands. These include credible and verifiable sustainability claims, as the certification provides independent, third-party verification that recycled content claims are accurate. This helps brands avoid greenwashing and confidently communicate their environmental commitments. Furthermore, GRS demands full supply chain traceability and transparency through a strict chain-of-custody system, which allows materials to be tracked from recycled inputs to finished goods, giving brands greater control and visibility.

The certification also strengthens brand reputation and consumer trust, as GRS-certified products demonstrate genuine environmental action and responsibility in a market that increasingly values sustainability. Beyond this, GRS-certified manufacturers must adhere to stringent environmental and social standards, including chemical restrictions, wastewater management, fair wages, and worker safety, supporting ethical production. Lastly, this certification fosters regulatory readiness and risk mitigation, helping brands align with growing ESG expectations and avoid issues related to false claims or non-compliance.

2. Thygesen Textile Vietnam

Thygesen Textile Vietnam is a full-service OEM/ODM apparel manufacturer based in Vietnam, boasting over 90 years of experience in the textile industry. Thygesen collaborates with global brands such as Girlfriend Collective, Calvin Klein, Tommy Hilfiger, Boody, and Ninepine, providing comprehensive services from design consultation and fabric sourcing to sampling, production, and international delivery.

All products are meticulously crafted with a strong focus on quality, ethics, and sustainability in their SA8000 and WRAP-certified factory, which fully complies with ISO 9001:2015, GRS, GOTS, OEKO-TEX STANDARD 100, FSC, and OCS standards. The company prides itself on being a strategic advisor, working closely with brands to optimize design, materials, and production. Thygesen Textile Vietnam – Ethical Apparel Manufacturing Partner is committed to long-term partnerships, guided by a corporate philosophy centered on truthfulness and responsibility.

Thygesen, as a versatile apparel manufacturer, can produce a wide range of garments including various fashion lines. For instance, their expertise extends to items commonly found in urban fashion, making them a proficient Thygesen streetwear clothing manufacturer capable of handling diverse design complexities and material choices.

3. Hucai Sportswear

Established in 1999, Hucai Sportswear is a China-based sportswear manufacturer located in Dongguan City, Guangdong Province, with more than 25 years of industry experience. Hucai's product line includes custom sports bras, yoga pants, gym shorts, T-shirts, joggers, and hoodies, all customizable to brand specifications. The factory supports custom logo printing, woven labels, and brand identity services, typically accepting a minimum order quantity of 200 pieces per style. Hucai is GRS certified, complementing its Amfori BSCI social compliance, OEKO-TEX® Standard 100, SGS fabric test reports, and Disney FAMA factory authorization.

4. Sansan Sports

Sansan Sports, based in Dongguan, China, is an integrated activewear manufacturer offering comprehensive solutions for international sportswear and athleisure brands. The company provides OEM and ODM services from concept to global shipment, focusing on leggings, sports bras, seamless activewear, yoga sets, gym shorts, performance T-shirts, hoodies, swimwear, and outdoor apparel for women, men, and children. Sansansun Sports offers low MOQs, starting from approximately 30-100 pieces per style, and is GRS certified, alongside BSCI, OEKO-TEX® Standard 100, and ISO certifications.

5. Eclat Textile

Eclat Textile Co., Ltd., headquartered in Taiwan, is a vertically integrated textile and apparel manufacturer with global production facilities in Vietnam, Cambodia, Indonesia, and other regions. Founded in 1977, Eclat specializes in high-performance knit fabrics and finished garments for leading international brands, offering end-to-end services from material innovation to garment manufacturing, particularly for activewear, sportswear, seamless apparel, underwear, and swimwear. Operating at a large scale, Eclat customizes MOQs and production terms per project. Eclat holds GRS certification, along with RCS, bluesign®, ISO standards, and Higg Index participation.

6. Eationwear

Eationwear is a custom sportswear and yoga apparel manufacturer located in Dongguan, Guangdong Province, China. Established in 2014, the company operates two production facilities capable of delivering up to 500,000 pieces per month, supporting both large and small orders with flexible MOQs starting from around 100 pieces per design/color. Eationwear provides a wide range of performance apparel including custom yoga wear, activewear, shirts, hoodies, jackets, and leggings, along with comprehensive services such as fabric sourcing and quality inspection. Eationwear holds GRS certification, in addition to BSCI (Grade B), ISO 9001, and OEKO‑TEX 100.

7. Billoomi Fashion

Billoomi Fashion, an export-oriented, full-service apparel manufacturer in New Delhi NCR, India, has over 15 years of experience serving international fashion brands and startups. The company specializes in custom private-label garment production, including woven and knitted apparel for men, women, and children, such as T-shirts, hoodies, and dresses, all made to custom designs. Known for flexible low minimum order quantities, starting from around 25 pieces per style with mixed sizes, Billoomi Fashion maintains a monthly capacity of up to 60,000 pieces. Billoomi Fashion is ISO 9001:2015 certified and SEDEX audited, reflecting its commitment to ethical and export compliance standards.

8. Organic & More

Organic & More is a GRS certified apparel manufacturer and exporter based in Noida, Uttar Pradesh, India, with a strong focus on sustainable garment production. The company specializes in infant, toddler, kids', maternity, yoga, and women’s casual apparel made from 100% GOTS-certified organic cotton and other eco-friendly textiles. Their services encompass pattern development, sampling, sourcing, cut-to-pack production, printing, embroidery, quality control, and global export support, serving brands in Europe, North America, Australia, and the Middle East.

When searching for a versatile t-shirt manufacturer, it is important to consider their range of certifications and commitment to sustainable practices. Many GRS certified facilities offer diverse production capabilities suitable for a broad array of garment types.

9. MAS Holdings

MAS Holdings, a Sri Lanka-based global apparel and textile manufacturer founded in 1987 and headquartered in Colombo, produces intimate wear, sportswear, swimwear, and performance apparel for leading international brands. Operating over 50 facilities across more than 15 countries and employing over 100,000 people, MAS is recognized for its innovation and sustainability initiatives, providing end-to-end design-to-delivery solutions. While specific GRS certification for all their factories is not explicitly shown on their corporate site, MAS Holdings emphasizes sustainability through programs like Plan for Change and maintains high standards across ISO, BSCI, and WRAP frameworks to support global compliance.

10. Esquel Group

Esquel Group, a global textile and apparel manufacturer headquartered in Hong Kong, was founded in 1978 and is known for its vertically integrated supply chain from raw materials to finished garments. It operates manufacturing facilities in China, Malaysia, Sri Lanka, Vietnam, and Mauritius, producing large volumes of shirting, woven apparel, and performance textiles for major international brands. Esquel holds multiple internationally recognized certifications across its production network, including GRS, GOTS, OCS, OEKO‑TEX® Standard 100, ISO 9001, ISO 14001, and ISO 50001.

11. OCC Apparel

OCC Apparel is an ethical and sustainable apparel supplier and manufacturer based in Australia, serving both local and international markets with organic and eco-friendly clothing solutions. The company sources and supplies 100% organic cotton garments and offers a range of services including screen printing, embroidery, transfers, relabeling, custom decoration, and fulfillment. OCC Apparel supports brands, not-for-profits, and corporate customers with printed or blank apparel that aligns with ethical standards. OCC Apparel’s industry accreditations include GRS, GOTS, Fairtrade, Fair Wear Foundation, OCS, Carbon Neutral, and ECA.

12. Other Certifications and Standards That Complement GRS

While GRS is crucial for verifying recycled content and supply-chain traceability, brands often consider additional certifications to enhance overall compliance, quality control, and sustainability. These include OEKO-TEX® Standard 100, which ensures products are free from harmful chemicals, and SA8000, which guarantees ethical labor practices. The Global Organic Textile Standard (GOTS) applies to organic components in blended products, while Forest Stewardship Council (FSC) Certification ensures responsible sourcing of certain fibers. Other valuable standards include the Recycled Claim Standard (RCS), bluesign® for environmental, health, and safety standards, and ZDHC (Zero Discharge of Hazardous Chemicals) for eliminating hazardous chemicals in the textile supply chain.

Choosing the right GRS certified clothing manufacturer is vital for establishing a transparent and compliant supply chain. For inquiries or to explore collaboration with Thygesen, a trusted ethical clothing manufacturer in Vietnam, please contact sale@thygesen.com.vn or visit thygesenapparel.com.