What Makes a Compression Stockings Medical Grade? SUN POLAR Explains

What Defines Medical-Grade Compression Stockings?

As a specialized manufacturer of medical-grade compression stockings, SUN POLAR partners with healthcare brands and institutions worldwide to deliver high-quality, reliable products. Our expertise spans yarn material selection, functional structure design, precision knitting, and strict quality control, ensuring that every pair meets international standards and provides consistent compression performance.

 

 

1. What are Medical-Grade Compression Stockings?

Medical-grade compression socks are designed with graduated compression, providing the highest compression at the ankle and gradually decreasing toward the calf and thigh. This targeted compression helps promote venous return, reduce swelling, and prevent chronic venous insufficiency, varicose veins, and deep vein thrombosis.
 
Unlike regular compression socks or athletic compression wear, medical-grade compression stockings provide a compression range of approximately 20–40 mmHg. Anti-embolism stockings commonly provide 15–20 mmHg, with optional higher ranges (e.g., 20–30 mmHg, 30–40 mmHg) available upon request. Both types undergo rigorous compression and durability testing. They are typically classified by compression level (e.g., Device Class 1& 2) and should be used under the guidance of a physician or healthcare professional.
 

Learn more about compression therapy from SUN POLAR Insight

 

What are Medical-Grade Compression Stockings

 

 


 

2. Expertise in Medical-Grade Compression Manufacturing

SUN POLAR utilizes advanced circular knitting technology, including Germany MERZ machines, to produce medical-grade compression stockings with precise, graduated compression profiles. Our machines allow exact control of yarn tension and stitch patterns, ensuring uniform compression and superior durability.


SUN POLAR employs advanced circular knitting technology, using German MERZ machines to manufacture medical-grade compression stockings with graduated compression levels. The machines allow accurate control of yarn tension and stitch design, ensuring consistent compression and excellent durability.

Every stocking undergoes rigorous in-line and laboratory testing, and our engineers optimize yarn selection, knitting density, and compression gradients to meet strict medical standards while maintaining wearer comfort. This combination of precision engineering and quality control ensures that SUN POLAR delivers professional-grade compression stockings that brand partners can confidently offer.

 

Learn more about MERZ technology

 

Running Compression Socks

 
 

 
 

3. International Standards and Certifications

SUN POLAR operates under internationally recognized quality and regulatory systems to ensure that every medical-grade compression stockings meets the requirements of global medical device markets. Our certifications demonstrate our commitment to safety, consistency, and compliance—key elements for brands seeking a reliable OEM/ODM manufacturing partner.

1. CE
Products manufactured under SUN POLAR system comply with CE requirements for medical devices, ensuring safety, performance, and risk management in the European market.

 

2. ISO 9001:2015
Ensures standardized production processes and continuous quality improvement across SUN POLAR operations.


3. ISO 13485:2016 – Medical Device Quality Management System
ISO 13485:2016 is the globally recognized quality management standard for medical device manufacturing, emphasizing risk management, process control, traceability, and post-market surveillance. Its adoption ensures SUN POLAR’s compression stockings consistently meet medical-grade requirements for safety and quality.

 

4. FDA Registration – Device Class 2 Medical Device Manufacturing
SUN POLAR is registered with the U.S. FDA (Registration Number: 3008381219) and is qualified to manufacture Device Class 2 medical devices, specifically STOCKING, MEDICAL SUPPORT, ensuring readiness for the U.S. market.


5. Global Recycled Standard (GRS)
Provides sustainable and traceable material options for brands seeking environmentally responsible products.
These international certifications, along with FDA registration, demonstrate our expertise in manufacturing medical-grade compression stockings, ensuring compliance with the rigorous safety, quality, and regulatory standards expected by global medical brands and healthcare professionals. 

 

Learn More About SUN POLAR Certifications

 

International Standards and Certifications

 
 

Ready to Customize Your Medical-Grade Compression Stockings? 

SUN POLAR combines advanced manufacturing expertise with internationally recognized certifications to deliver compression stockings tailored to your brand and market. With our full-fledged post-processing options, your medical-grade compression stockings can achieve unique functional advantages, helping them stand out in a competitive market.

 

✦ Premium Customization Options

• Silicone Gel : Improves grip, preventing slippage for a secure fit.

• Zipper : Simplifies donning and removal for user convenience.

• Elastic Band : Adjustable tightness with superior yarn quality from our parent company, E.C.I. Elastic Co., Ltd.

• Attachment : Optional splints for targeted support and enhanced comfort.

 

Start Your Customization Today  ⬎

https://www.sunpolartw.com/custom-medical-stockings

 

Follow SUN POLAR on LinkedIn for more expert insights and updates on the latest compression technology.

 

Video: Looking to expand your medical product line?

 

 

 

 2025-12-05