Sustainable and ethical production is no longer optional in the activewear industry. Today’s brands are partnering with activewear apparel manufacturers that prioritize transparency, environmental responsibility, and social compliance. In this guide, we introduce top 8 manufacturers helping activewear brands build long-term, responsible collections. Hope this list will be helpful for your search and sourcing process.

1. Thygesen Textile Vietnam – An Ethical and Sustainable Activewear Manufacturer With Over 90 Years Experience
Thygesen Textile Vietnam is a trusted global apparel manufacturer in Vietnam with a legacy of over 90 years in textile expertise, producing high‑performance garments for brands worldwide with full package service from design consultation, to material sourcing, bulk production and logistics.
>>> For brands focused on empowering womens fitness unveiling your activewear manufacturing partner with a proven track record, Thygesen offers comprehensive OEM services.
Having been working with many global brands such as Calvin Klein, Tommy Hilfiger, DKNY, Nude Lucy, Fjallraven, Ninepine, GIRLFRIEND COLLECTIVE, Wilson, Paragon Fitness, BFree, Rockwear, Boody… we can confidently provide a complete OEM service from sample development to garment delivery.
Our clothing OEM service can offer an extensive range of GOTS, GRS, OEKO-Tex certified fabrics, namely tencel, modal, cotton, supima cotton, organic cotton, bamboo, viscose, polyester, recycled polyester, nylon,…We also apply LEAN manufacturing production to reduce waste and emissions.
>>> When seeking the activewear manufacturer with advanced technical fabrics that meet global standards, Thygesen Textile Vietnam stands as a leader in innovative material solutions.
Thygesen’s manufacturing capabilities include advanced seamless technology for comfort‑focused garments, and their quality systems hold key certifications like ISO 9001, Oeko‑Tex Standard 100, GOTS, GRS, WRAP, reflecting our commitment to ethical and safe production practices.

2. ASNS Apparel – UK-Based Activewear Manufacturer with Low MOQ Solutions
ASNS Apparel is a premium clothing manufacturer headquartered in London, United Kingdom, with over a decade of experience in apparel production for both UK and international brands. The company specializes in custom garment manufacturing with a strong commitment to sustainability and quality, utilising eco-friendly fabrics such as organic cotton and recycled polyester in its production lines.
>>> To explore more options within the region, consider our in-depth guide to the Top 8 Best Activewear Manufacturers in UK.
ASNS Apparel offers a wide range of services, from initial design consultation and fabric selection to sampling, full production, and custom finishing such as embroidery, sublimation, and labels.
In activewear specifically, the company manufactures high-performance garments including leggings, sports bras, joggers, hoodies, tracksuits, and gym tees. With accessible minimum order quantities starting from around 100 units per style/colour on most items, they cater to startups as well as growing and established businesses, ensuring scalability without compromising on quality.

>> If you are evaluating a trusted legging manufacturer with strong fit, stretch, and durability expertise, Thygesen delivers performance-focused leggings with ethical and scalable production.
3. Crystal Group – Activewear Manufacturer with Large-Scale Production Strength
Crystal Group is a leading global apparel manufacturer headquartered in Hong Kong, established in 1970. Over the past five decades, it has expanded into a multi-country manufacturing network with production facilities across Vietnam, China, Cambodia, Bangladesh, and Sri Lanka, serving major fashion brands worldwide.
Crystal Group offers comprehensive apparel production services from design support and pattern making to full-scale garment manufacturing and quality control. The company’s product portfolio spans key categories including sportswear and outdoor apparel, casual wear, denim, intimate wear, sweaters, and lifestyle clothing – with its activewear and sportswear manufacturing recognized for technical execution and high-volume capacity.

4. Pearl Global – Activewear Manufacturing with Global Facilities and Diverse Capabilities
Founded in 1987, Pearl Global Industries Ltd is a multinational apparel manufacturer headquartered in Gurugram (Gurgaon), Haryana, India, with a strong presence across 9 countries including India, Bangladesh, Vietnam, Indonesia, USA, UK, Spain, Guatemala, and Hong Kong. With over 25,700+ employees and more than 25 modern manufacturing units worldwide, Pearl Global has grown into a trusted supplier for leading global fashion brands across diverse market segments.
In activewear specifically, the company leverages scalable manufacturing processes and sustainable technologies to produce performance garments such as training tops, leggings, sweatshirts, and athleisure pieces while meeting global compliance standards. With a diversified supply base and high annual production capacity (over 80-90 million garments per year), Pearl Global is equipped to support large volume orders for activewear brands all around the world.

>> For brands seeking a professional streetwear clothing manufacturer, Thygesen is an equally excellent option, combining global manufacturing capabilities with responsible sourcing and long-term production support.
5. Square Fashions – High-Capacity Activewear Manufacturer with Global Certifications
Square Fashions Ltd. is a vertically integrated apparel manufacturer based in Dhaka, Bangladesh, with roots in the broader Square Group textile business that began yarn production in 1997 and expanded into garment manufacturing by 2002.
Square Fashions provides end-to-end manufacturing services including design, sampling, cutting, knitting, embroidery, printing, and finishing. Its activewear portfolio includes polo shirts, T-shirts, sweatshirts, hoodies, jackets, tank tops, and kids’ sportswear, using technical fabrics like Lycra blends, fleece, and rib knits for performance, comfort, and durability. The company is Oeko-Tex® Standard 100, ISO 9001 & 14001, SUPIMA, and FAIRTRADE certified, ensuring global compliance and sustainability.

6. Esquel Group – Vertically Integrated Apparel & Activewear Manufacturer from Cotton to Garment
Esquel Group is a globally recognised textile and apparel manufacturer founded in 1978 and headquartered in Hong Kong. With over 40 years of industry experience, Esquel has built a vertically‑integrated supply chain covering cotton cultivation, yarn spinning, fabric knitting and weaving, dyeing, finishing, and garment manufacturing.
The company operates multiple production facilities across China, Vietnam, and Sri Lanka, with additional merchandising offices and global partnerships to serve international clients. Known for high‑quality apparel production, Esquel produces tens of millions of garments annually for some of the world’s most respected fashion brands.
While traditionally renowned for premium shirts and woven garments for Ralph Lauren, Tommy Hilfiger, Hugo Boss etc, Esquel’s capabilities extend into knitwear and performance apparel, enabling it to support activewear production alongside core categories like T‑shirts, polos, and technical tops.

>> When choosing a reliable t shirt manufacturer with full supply chain control, you can consider Thygesen; we guarantee consistent fabric quality and ethically certified production processes.
7. Eation Wear – Active Apparel Manufacturing with Advanced Production Systems
Eationwear is a high‑end sportswear and activewear manufacturer founded in 2014, headquartered in Dongguan, Guangdong, China, with a focus on serving global apparel brands with custom OEM/ODM solutions.
Eationwear offers end‑to‑end manufacturing services covering custom design, fabric selection, sampling, cut‑and‑sew, advanced printing, and quality inspection with AQL standards, supported by intelligent production systems that improve efficiency and shorten lead times.
The company specializes in a broad range of activewear products, including yoga wear, women’s activewear (sports bras, leggings, tanks, hoodies), men’s training apparel, shorts, tracksuits, and coordinated active sets, ensuring performance, comfort, and functionality for diverse markets.

>> When comparing a capable hoodie manufacturer for performance and athleisure collections, Thygesen stands out with flexible OEM solutions and strict quality control for global brands.
8. The Evans Group – A US-Based Low-MOQ Activewear Manufacturer
The Evans Group (TEG) is an award‑winning full‑service clothing manufacturer based in Los Angeles, California, with over 20 years of experience.
With a focus on domestic production and sustainability, TEG has become a go-to U.S. partner for brands seeking low‑MOQ, small-batch, and scalable apparel solutions, allowing designers to launch and test collections without large upfront commitments.
The company specializes in activewear manufacturing, producing gym wear, athleisure pieces, tees, tanks, hoodies, tracksuits, and other performance‑ready garments – all crafted ethically and sustainably in its Los Angeles facility. With low MOQs starting around 10-50 pieces per style, TEG is ideal for startups and small brands while also capable of scaling to larger seasonal orders as needed.

Things to Look For In An Activewear Apparel Manufacturer For Long-term Partnership
When choosing an activewear apparel manufacturer for a long-term partnership, it’s essential to go beyond cost and lead times. The right partner not only produces high-quality garments but also supports your brand with expertise, transparency, and reliable processes. Here are the key factors to consider:
Experience with Activewear Manufacturing
Manufacturers should have proven experience in producing performance garments and handling the unique requirements of activewear. This includes working with stretch fabrics, technical knits, and moisture-wicking materials, as well as applying specialized construction techniques to ensure proper fit, durability, and comfort.
Beyond just production, an experienced activewear manufacturer can advise brands on fabric selection, garment construction, sizing, and design adjustments, helping to prevent common pitfalls and optimize the final product. Their expertise allows them to anticipate challenges in patterning, sewing, and finishing, which reduces the risk of inconsistencies and ensures the final activewear performs as intended.
>> As an experienced cut and sew manufacturer, Thygesen supports activewear brands with precise construction, technical fabric handling, and consistent quality from sample to bulk production.
Quality Control Standards
Consistent quality is critical when producing garments at scale. A strong quality control process ensures every item matches the approved sample, protecting your brand’s reputation and reducing returns or customer complaints.
QC typically covers multiple stages, including pre-production checks of fabrics, trims, and patterns; in-line inspections during sewing and assembly to catch errors early; and post-production final inspections of fit, color, sizing, and overall appearance. Thorough QC at every step guarantees a uniform, high-quality product and maintains reliability across large orders.
Transparency & Responsibility
Clear communication and accountability are at the heart of every successful collaboration. A manufacturer that values transparency keeps all necessary information open and accessible, ensures mutual understanding of goals and intentions without assumptions or blame, clearly defines roles and deadlines, and proactively collaborates to resolve issues as they arise.
This clarity allows each step of production to proceed smoothly, fosters trust between the brand and manufacturer, and ultimately supports a long-term, reliable partnership.

>> For brands seeking reliable athletic apparel manufacturers for long-term growth, Thygesen offers proven expertise, transparency, and ethical production built on over 90 years of textile experience.
Ethical Production Considerations (Especially for US Brands)
For US-based brands, ethical production is more than a marketing claim, it is a crucial factor that safeguards brand reputation, ensures compliance with labor laws, and meets increasing consumer expectations for social responsibility. Partnering with manufacturers that uphold high ethical standards not only reduces legal and reputational risks but also strengthens long-term relationships with both workers and customers. Key considerations for evaluating ethical production include:
- Transparent Labour Practices: Manufacturers should demonstrate fair and transparent labor practices, including safe working conditions, fair wages, regulated working hours, and respect for workers’ rights. Transparency in labor management ensures that brands can verify that all employees are treated ethically and that supply chain operations comply with both local regulations and international labor standards. This level of openness also facilitates audits, reporting, and accountability, giving brands confidence in the ethical integrity of their production.
- Recognised Social & Ethical Certifications: Look for manufacturers holding certifications such as WRAP, SA8000, Fair Trade, or BSCI, which validate adherence to social and ethical standards. These certifications provide third-party assurance that factories maintain responsible labor practices, safe working environments, and social compliance. Working with certified partners allows US brands to demonstrate tangible commitment to ethical sourcing and reduces risk in global supply chains.
- Responsible Material Sourcing: Ethical production also applies to how a manufacturer handles the materials requested by the brand. A responsible clothing manufacturer may not choose the fabrics, but they must have the capability and systems to source materials ethically, ensuring that requested fabrics, trims, or components comply with certifications, traceability requirements, and sustainability standards. This includes the ability to provide documentation on origin, production methods, and compliance, helping brands maintain integrity across their supply chain.
- Environmental Management Systems: Manufacturers should implement robust environmental management systems (EMS) to minimize energy use, water consumption, and chemical waste. Practices such as wastewater treatment, energy-efficient dyeing, and carbon footprint monitoring demonstrate a factory’s commitment to environmental stewardship. For US brands, partnering with manufacturers that actively manage and reduce environmental impact not only supports regulatory compliance but also enhances brand credibility among eco-conscious consumers.

In conclusion, partnering with reliable activewear apparel manufacturers ensures high-quality garments, transparency, and social responsibility across the supply chain. With full OEM/ODM capabilities, extensive certifications, and 90+ years of textile experience, Thygesen guarantees quality and ethical production every step of the way. Visit thygesenapparel.com or email sale@thygesen.com.vn to explore how they can support your activewear brand.
















