Quality and makers

We only state what we can show. Here is who makes what we sell, what each certificate covers, and what it does not.

Our compression wear

These are made by Hunan Xiangzi Medical Devices Technology: Zipper Socks, Closed Toe, Zipper Socks, Open Toe, Firm Zipper Socks, Wide-Calf Zipper Socks, Firm Knee-High Socks, Cotton-Blend Knee-Highs, Thigh-High Stockings, Compression Gloves.

• Made in an FDA-registered facility. The factory is registered with the US Food and Drug Administration as a device establishment. This is a registration of the factory, not an FDA approval or clearance of any product.
• Made by an ISO 13485-certified manufacturer. ISO 13485 is the international quality-management standard for medical device makers. Certificate CQC25QY20024R1S/3600, issued by China Quality Certification Centre (CQC), valid to April 2028.
• OEKO-TEX® STANDARD 100 yarn. The nylon yarn is certified (certificate 16.HCN.90144, Hohenstein), held by the yarn maker Zhejiang Dingyi New Materials. The certificate covers the yarn; the finished items are not separately OEKO-TEX certified.

Our dressing aids

The Stocking Donner and Donning Gloves come from other makers. We make no certification claims for them.

Compression levels

All our socks and stockings use graduated compression: snuggest at the ankle, easing off up the leg. ZipperSocks are rated 15-20 mmHg by the brand. For the items above rated by the maker in European classes, we describe the level as a class (for example "20-30 mmHg class" for a sock the maker rates 23-32 mmHg) until we hold our own lab reports. We do not sell 30-40 mmHg garments.

Safety

Compression wear is not right for everyone. If you have peripheral artery disease, heart failure, fragile skin, open sores or reduced feeling in your feet, talk to your doctor before wearing it. New, painful or one-sided swelling needs a doctor, not a sock.

Take compression off if you feel numbness, tingling or pain, or see a change in skin colour, and check your size with our sizing guide. Read when to see a doctor about leg swelling.