What Does mmHg Mean in Compression Socks A B2B Selection Guide

author: Carol

2026-05-26

For sock brands, medical device distributors, and e-commerce retailers, inventory success hinges on a key metric: mmHg (millimeters of mercury). This measures pressure intensity, and if the pressure rating of inventory doesn't match the target market, it can lead to slow-moving stock or high return rates.
With over 20 years of professional manufacturing experience, Compports understands that true medical-grade socks require precise gradient pressure—100% pressure at the ankle, gradually decreasing upwards along the leg. Below is a concise guide from our engineering team to help you directly link mmHg pressure ratings to your sales channels and SKU decisions.

The Master SKU Breakdown & Market Fit

1. 8-15 mmHg (Light Support)

Target Market: Frequent travelers, office workers, daily wellness.
Best For: Fast-fashion retailers, supermarkets, and lifestyle brands. These are low-barrier, everyday products requiring no medical disclaimers.

2. 15-20 mmHg (Mild Therapeutic)

Target Market: Athletes, pregnant women, flight crews, and nurses.
Best For: The "Golden SKU" for Amazon and Shopify fitness brands. It delivers noticeable leg relief and high repurchase rates without strict medical sales restrictions. Commports regularly designs high-performance athletic lines in this specific range.

3. 20-30 mmHg (Moderate Medical - Class I)

Target Market: Patients with visible varicose veins, mild edema, or post-surgery recovery.
Best For: Pharmacies, orthopedic brands, and medical supply stores. This range requires precise manufacturing calibration.

4. 30-40 mmHg & 40+ mmHg (Firm to Severe Medical - Class II/III)

Target Market: Severe chronic venous insufficiency (CVI), lymphedema, and deep vein thrombosis (DVT) management.
Best For: Specialized clinical distribution, hospital procurement, and certified medical wholesalers

Channel Strategy: How to Build Your Order

Why Brands Trust Commports for Precise mmHg Delivery

Many trading companies offer socks with uniform elasticity, rather than true gradient elasticity, which can actually hinder blood circulation.
As a high-end OEM/ODM factory, Commports eliminates this risk. Our workshop is equipped with over 50 high-end German Merz knitting machines and 100 Italian Lonati knitting machines. More importantly, we use professional testing equipment from Switzerland to calibrate every batch of products to ensure your order strictly meets international medical-grade standards.