20-30 mmHg graduated compression (class 2). Medically approved by quality certificates, includes ISO09001, ISO13485, CE, FDA. . help prevent the occurrence of, and guard against further progression of, venous disorders such as edema, phlebitis and thrombosis. Compression stockings are elastic garments worn around the leg, compressing the limb. . Easy on & off, thanks to Polyamide, Elastaneflexible materials. ★Compression stockings are available in standard sizes and colors