This is a medical level knee high compression sock, which provide 40-50mmHg firm graduated pressure to help and relieve varicose veins, lymphedema, phlebitis, vein thrombosis for post-surgical, fatigue, pain, swelling etc. 25 years professional manufacturing experience, ce approved, good product. 

Features:
Medical level compression socks, 28% spandex and 72% polyamide fiber.
Provide firm graduated pressure of 40-50mmHg.
Reinforced heel and edge, durable and anti-slide to wear.
Help prevent and relieve: varicose veins, lymphedema, phlebitis, vein thrombosis for post-surgical, fatigue, pain, swelling etc. 
Freely walk, sit, stand and work, open toe design, suit all attire. 
Easy cleaning, accept hand washing.
CE Approved, high quality product.

Specifications:
Material: Spandex + Polyamide 
Size: S / M / L / XL / XXL (Optional)
Product Weight: 54g(S); 59g(M); 70g(L); 74g(XL); 83g(XXL);
Package Size: 14.5 * 12 * 1cm(s/M); 15 * 12 * 2cm(L); 19 * 13 * 1cm(XL/XXl)
Package Weight: 57g; 61g; 71g; 76g; 85g;

Package Include:
1 * Pair of Compression Socks