The more the activewear market grows, the more worldwide customers favor seamless leggings. For clothing brands and fitness businesses, finding the right seamless legging manufacturers is the key to business success. Good manufacturers use modern technology to make leggings that are comfortable, stretchy, and have no annoying seams. To help your brand stand out and scale up quickly, here is a detailed list of the top 10 suppliers you should keep in mind.
1. Thygesen Textile Vietnam
In recent years, seamless garments have become increasingly popular in the textile and activewear industry. Unlike traditional cut-and-sew methods, seamless products are knitted in a single piece, which helps minimize seams, improve flexibility, and enhance overall comfort and wearability – making them ideal for leggings and performance apparel.
At Thygesen Textile Vietnam, we leverage a strong network of reliable subcontractors and advanced seamless knitting machinery to produce high-quality seamless leggings. This allows us to ensure consistent fit, smooth construction, and precise shaping, meeting the demands of both fashion and functional activewear markets.
With proven expertise in seamless technology, Thygesen delivers leggings and related garments with high elasticity, durability, and body-contouring comfort. Our production capability covers multiple product lines such as activewear and underwear, ensuring stable quality and scalable manufacturing for global brands.
2. Argus Apparel
Argus Apparel was founded in 2015 and is based in Los Angeles, USA. With over 10 years of experience, the company has become skilled at making high-quality activewear, especially seamless leggings that offer great comfort and flexibility.
They specialize in seamless leggings manufactureres along with gym wear, yoga pants, sports bras, and custom activewear. Known for strong attention to fit and movement, they focus on producing smooth, comfortable seamless leggings for fitness brands. They offer flexible minimum order quantities, making them a good partner for both new startups and growing businesses. Their strength lies in custom designs, reliable quality, and fast production in the USA.
3. Activewear Bali
Activewear Bali started in 1993 under PT King Trading and is based in Bali, Indonesia. With more than 30 years of experience, their clothing manufactures have developed strong skills in creating seamless leggings and performance activewear using advanced stretch fabrics.
The company produces seamless leggings, sports bras, training shorts, yoga sets, and studio wear. They pay special attention to seamless leggings that provide excellent comfort, support, and shape retention. With flexible MOQ starting from around 200-300 pieces, they serve international brands looking for quality and sustainability. Their main strength is combining eco-friendly materials with reliable large-scale production.
4. Gym Leggings
Gym Leggings has been operating for over 16 years and is headquartered in Beverly Hills, California, USA. The company has built solid experience in making seamless leggings that deliver comfort and performance for intense workouts.
They focus mainly on gym leggings, yoga pants, compression styles, and matching active sets. Their seamless leggings are a top product, designed for smooth fit and lasting durability. They offer approachable minimum order quantities and good support for wholesale buyers. Their advantage is creating simple, high-quality leggings with excellent stretch and quick production turnaround.
5. Mega Apparel
Mega Apparel was founded in 2012 and is based in Los Angeles, USA. With more than 13 years of experience, the company has become a skilled manufacturer of custom activewear, with a strong focus on seamless leggings for fitness brands.
Mega Apparel – A trusted seamless legging manufacturer in the USA, they produce high-quality seamless leggings, gym wear, sports tops, and complete activewear collections. They pay special attention to seamless leggings that offer excellent style, comfort, and flexibility for daily workouts. Mega Apparel provides flexible MOQ options suitable for startups and larger orders. Their key strength is full custom manufacturing with good quality control and on-time delivery.
6. Apparitex
Apparitex is a professional seamless manufacturer with many years of experience in the activewear industry. Even though founded in 2014, their team has a strong background in garment manufacturing, especially in seamless knitting technology for leggings and athleisure wear.
They have developed deep knowledge in producing smooth, comfortable seamless leggings using modern knitting techniques. The company specializes in seamless leggings, high-waisted styles, athleisure wear, and performance gym clothing. They are particularly strong in seamless leggings that feel soft, breathable, and supportive. They accept flexible order quantities for private label production. Their main advantage is high-quality seamless technology and reliable service for global brands.
7. Runtang Textile
Runtang Textile was established over 14 years ago and is based in Foshan, China. Along with strong experience in fabric and garment production, they have become experts at making seamless leggings from high-quality knitted materials.
They produce seamless leggings, yoga sets, gym wear, and various active apparel. The company focuses heavily on seamless leggings with excellent stretch and comfort. They offer competitive minimum order quantities and vertically integrated production. Their strength comes from controlling fabric quality from start to finish for better durability and feel.
8. Tack Apparel
Tack Apparel was founded in 2022 and is based in California, USA. Even as a newer company, they bring fresh energy and solid experience in custom clothing manufacturing, with a growing focus on seamless activewear.
They offer seamless leggings, gym clothing, shorts, tracksuits, and custom sportswear. They emphasize seamless leggings that provide modern fit and comfort. With flexible MOQ, they support new brands and custom projects. Their advantage is personalized service and quality craftsmanship for active and streetwear styles.
9. SRL Sports
SRL Sports has been operating for over 12 years and is based in Australia. With strong experience in sportswear manufacturing, they have grown into a dependable seamless legging manufacturer for both local and international clients.
Their product range includes seamless leggings, team uniforms, training wear, and performance activewear. As seamless legging manufacturers, they focus on creating functional and comfortable leggings suitable for gym and everyday use. They offer flexible order quantities for custom projects. Their key advantage is practical designs combined with high-quality activewear with excellent customer support.
10. Ohsurewear
Ohsurewear was founded in 2014 and is based in Dongguan, China. Having over 10 years of experience, the company has developed good expertise in making seamless and performance leggings for the fitness market.
Ohsurewear produces seamless leggings, gym wear, sports bras, jackets, and full activewear sets so famous for a reliable seamless legging manufacturer known for flexible production and comfortable designs. They put special focus on seamless leggings with different styles including yoga, compression, and printed designs. They support flexible MOQ around 100 pieces per style. Their strength is reliable OEM/ODM service and comfortable, functional activewear.
Seamless Manufacturing: Key Considerations in Production
Seamless manufacturing requires a high level of technical precision and close control across materials, machinery, and production processes. As garments are knitted in one piece, even small deviations can impact comfort, fit, and overall quality. Below are the key factors that clothing manufacturers need to carefully manage when producing seamless products.
- Advanced knitting technology & machinery: Ensure the use of high-performance seamless knitting machines to achieve accurate shaping, consistent density, and stable construction.
- Material selection: Select yarns with strong elasticity, breathability, and durability to maintain performance during wear and repeated washing.
- Fit & body mapping design: Apply ergonomic knitting zones to support different body areas, enhancing comfort, flexibility, and compression where needed.
- Precision in seamless construction: Maintain strict control over tension, stitch structure, and fabric density to avoid defects and ensure uniform quality.
- Quality control throughout production: Implement multi-stage inspections from knitting to finishing to ensure consistency and eliminate production flaws.
- Supply chain & subcontractor coordination: Seamless manufacturing requires specialized knitting machinery and technical capabilities that many clothing manufacturers may not fully own in-house, so production is often handled through trusted subcontracting partners. Brands should clarify and confirm the production setup with their manufacturer in advance, ensuring full transparency, aligned expectations, and stable quality control across the supply chain.
In conclusion, seamless manufacturing requires the right technology, technical expertise, and well-controlled production processes to ensure consistent quality and performance.
Thygesen Textile Vietnam is a reliable partner for seamless activewear and leggings production. For partnership opportunities in Vietnam, contact us at sale@thygesen.com.vn or visit https://thygesenapparel.com.
