About Our Brand

About Our Brand: We salute the ultimate designer: you.

Welcome to Marathon Embroidery Supplies – your trusted partner for premium embroidery threads and supplies. As the U.S. distributor of the globally recognized. 

Marathon brand, we proudly carry forward a legacy of excellence built over decades by Dong-Il Industry Co., Ltd., a pioneer in high-performance textile manufacturing.

Founded in South Korea in 1956, Dong-Il Industry has long been a global leader in synthetic yarns and dyed threads. Its Marathon brand, launched specifically for machine embroidery, quickly gained worldwide recognition for its exceptional quality, colorfastness, and consistent production standards. Today, Marathon threads are used by professional embroiderers in over 70 countries—valued for their durability, brilliant color range, and flawless finish.

At Marathon West, our mission is to bring this legacy of quality to businesses across the United States. With close to 30 years of wholesale embroidery experience, we understand the demands of commercial operations and the importance of dependable supplies. We’re more than just a distributor—we’re a partner invested in your success.

 

Why Choose Marathon West for Your Embroidery Supply Needs?

  • 30 Years of Wholesale Embroidery Experience

Gain peace of mind working with a supplier who understands your needs. We’ve supported embroidery businesses of all sizes for decades, helping them scale, streamline, and succeed.

  • High-Quality, Consistent Supplies at the Right Price

We provide materials you can rely on—every spool, every bobbin, every sheet—designed for consistent performance and professional results. If embroidery is your business, we know cost and reliability matter. Our products strike the balance between affordability and quality, so you get real value, not just bulk.

  • Wide Range of Commercial Embroidery Products

Whether you’re stocking up on rayon or polyester threads, stabilizers, bobbins, or 3D foam, we carry the full spectrum of professional-grade supplies under one roof—no more piecing together from multiple vendors.

  • Custom Cutting Services to Support Your Growth

Some rolls weigh over 70 pounds—so let us handle the heavy lifting. Our custom cutting service simplifies your workflow, reduces waste, and saves time on production prep.

  • Fast Shipping & Convenient Location

We’re based in California for fast fulfillment and personalized service. With same- day processing on most orders, you’ll get what you need—when you need it.

 

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    MARATHON
    156 W ADAMS BLVD,
    LOS ANGELES, CA 90007

Contact Us

Need assistance with your embroidery supply order? Our experienced customer service team is here to help. Contact us with product questions, volume purchase inquiries, or customer support—we’re ready to provide fast, helpful responses to keep your business moving forward.

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RETURN POLICY

We want you to be completely satisfied with your purchase. If something’s not quite right, we’re here to help.

Return Window
You may return items within 15 days of the invoice date. Just make sure the item is unused, in its original packaging, and that you’ve obtained a Return Authorization Number (RAN) from our team before sending anything back.

How to Start a Return
To request a return, simply contact us with your invoice number. We'll issue you a RAN and guide you through the next steps.

Restocking Fee
Returns made between 15 and 60 days from the invoice date may be accepted, but will incur a 15% restocking fee.

Non-Returnable Items
To ensure the quality and integrity of our products, we cannot accept returns on:

  • Items returned after 60 days
  • Used merchandise
  • Custom or special orders made specifically for your needs

Once a special order has reached a certain stage of production, it can no longer be canceled. We appreciate your understanding.

If you have any questions, feel free to reach out — we’re always happy to assist.

FAQ


Product & Materials

Q. What kind of thread do you offer?
We specialize in high-quality embroidery threads, including rayon, polyester, and metallic threads, suitable for both home and industrial machines.

Q. What’s the difference between rayon and polyester thread?
Rayon has a softer finish and high sheen, making it ideal for delicate fabrics and intricate designs. Polyester is more durable and colorfast, great for high-wear items or garments that require frequent washing.

Q. Are your threads colorfast and washable?
Yes! All our threads are made with premium dyes and tested for washability. However, we recommend testing your specific laundering method and fabric combination for best results.

Q. Are the threads compatible with all embroidery machines?
Absolutely. Our threads are compatible with most major machine brands including Brother, Janome, Bernina, Tajima, Barudan, and more.


🚚 Orders & Shipping

Q. How quickly do you ship?
Most orders ship within 1-2 business days. We’ll send tracking information as soon as your order is on its way.

Q. Do you offer free shipping?
Yes! We offer free shipping on orders over $100 (some restrictions apply, like oversized stabilizers and aerosol items).

Q. Can I change or cancel my order after it’s placed?
If your order hasn't shipped yet, please contact us right away — we’ll do our best to accommodate any changes.


🔁 Returns & Exchanges

Q. What is your return policy?
We accept returns within 15 days of the invoice date. Items must be unused, in their original packaging, and accompanied by a Return Authorization Number (RAN). For more details, visit our Return Policy page.

Q. Can I return special order items?
Unfortunately, special or custom orders are non-returnable once production has started. If you’re unsure about anything before ordering, reach out — we’re happy to help!


💬 Need More Help?

Still have questions? Our customer care team is here for you.

  • Live Chat: use the Live Chat button at the bottom of the page to chat with us (Mon-Fri, 9 AM-4 PM PST)
  • If you send us a message through Contact Us page, our team will reply to you by email.