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Your Trusted Seamless Leggings Manufacturer for Premium Custom Activewear

Boost your activewear line with premium seamless leggings made for performance and comfort. As a professional seamless leggings manufacturer, we have state-of-the-art equipment and technology to manufacture seamless leggings with high-quality fabrics, a wide range of options, with an unlimited range of custom solutions at factory-direct prices and low MOQs.

Partner with a Leading Seamless Leggings Manufacturer

Runtang is a mature seamless leggings manufacturer, providing brands with one-stop customization service from design to delivery. Our self-owned fabric factory and over 15 years of garment production experience empower us to handle large and small orders with flexibility. With a vertically integrated supply chain and advanced seamless knitting technology, we provide the production stability, customization freedom, and cost-efficiency confidently.

Reliable Production Capacity
Our facility is equipped with high-speed circular knitting machines, ensuring that every seamless legging we manufacture exceeds the industry average. Maintaining the best quality even in high-volume production.
Flexibility to Match Your Growth
We are a seamless leggings manufacturer that supports the development of startup brands with low minimum order quantities. When you want to expand the seamless leggings production, we can do it easily.
Flexible Customization
Feel free to share your creativity and inspiration, from fabrics, colors, and textures to printing various patterns. Our professional R&D and pattern-making teams communicate closely with you to ensure that the finished products meet your satisfaction.

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Explore Our Custom Leggings Options

Gym Leggings

Yoga Leggings

Flare Leggings

Short Leggings

High Waisted Leggings

Why Choose Us as Your Seamless Leggings Manufacturer

Production is Also Seamless

We operate our own seamless knitting facility, allowing us to manage every stage of production—from yarn sourcing to final packaging. This full control guarantees faster lead times, consistent quality, and better pricing.

Low Minimums, Scalable Capacity

We support the development of brands of all sizes, and our minimum order quantity of 100 helps brands save time and cost. Not only can you get to market quickly, but you can also save the risk of inventory buildup.

Strict Quality Assurance System

As the seamless leggings manufacturer in charge, the strict quality control procedures can guarantee the quality of each leggings. We can help you reduce returns and maintain your brand image.

The Benefits for Your Brand

Working with a trusted seamless leggings manufacturer gives your brand more than just products. With cutting-edge seamless knitting machines and strict QC protocols, we ensure each piece meets your standards.

Premium Look & Performance
Our seamless knitting capabilities allow you to offer leggings with sculpted shaping, targeted compression, and seamless comfort. Let us help you win customers with quality.
Faster Launches, Lower Risk
With low MOQs and fast sampling, you can test new designs with minimal risk and adapt quickly to emerging trends—without locking up cash in excess inventory.
Full Customization Power
From material selection and color matching to knitted-in logos and exclusive textures, every design detail can reflect your unique style, help you stand out in a crowded activewear space.

Tailored Seamless Leggings Manufacturing Services

Design Freedom with Technical Precision
We help you turn design ideas into seamless reality. From knitted logos to multi-zone compression, our technical team ensures your design is fully functional and factory-ready.
Private Label Options
Choose from knitted-in logos, heat transfer labels, woven tags, and custom packaging. We also offer color matching, pattern sampling, and brand consultation.
Diverse Yarn & Color Options
Runtang's own yarn and fabric warehouse gives you a wider selection of options, including nylon spandex blends, recycled polyester, and antimicrobial yarns.

How to Start Your Seamless Leggings Project

Share Your Design or Idea

This is our most commonly used material for seamless leggings. It offers excellent elasticity, a smooth hand feel, and strong shape retention.

Confirm Materials and Colors

Approve Your Sample

Start Bulk Production

Fast Global Transportation

Lets Get Started

Top Fabric Picks by a Professional Seamless Leggings Manufacturer

Nylon-Spandex Blend
This is our most commonly used material for seamless leggings. It offers excellent elasticity, a smooth hand feel, and strong shape retention.
Polyester-Spandex
Slightly more structured than nylon, polyester blends offer good breathability, shape retention, and cost-efficiency.
Recycled Nylon or Polyester
For eco-conscious brands, we provide GRS-certified recycled yarns. As your seamless leggings manufacturer, we strive to help you achieve your environmental goals.

Custom Heavyweight Finished T-Shirts Guidelines

Fabric

From 165gsm up to 235gsm

Recommended Fabrics: Nylon-Spandex Blend, Polyester-Spandex, Recycled Cotton, etc.

Minimum Order Quantity

Regular: 100 pcs per design per color

Or contact us for a customized MOQ.

Price

Depending on Fabric weight, Fabric yarn type, Print type, Embroidery type, Garment wash and dyeing type, etc.

Why Seamless Leggings Stay in Demand

Seamless leggings continue to lead the activewear market thanks to their sleek look, second-skin comfort, and high adaptability. With no side seams, they offer a smoother fit and reduce irritation during workouts or daily wear—making them a favorite for both fitness and fashion customers.

Minimal Stitching, Maximum Comfort
Versatile for Gym, Yoga, or Streetwear

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Frequently Asked Questions

Can you knit our logo directly into the seamless leggings?

What Makes Seamless Leggings Unique Compared to Regular Leggings?

What is the minimum order quantity for seamless leggings?

Do you support plus sizes or size customization?