Elastic stockings for promoting venous blood flow in patients with long-term hospitalization, those undergoing surgery, etc. Purchased early March 2026 Size M Calf circumference: 30-38 cm Compression at ankle: 24 hPa (18 mmHg) High socks, regular length (up to below the knee) Used for one day for hardware removal surgery due to a fractured leg. Washed at home. The other sock is unused. Will be shipped folded small. Thank you for looking.