Type: Compression Socks / Anti-Embolism Stockings (AES) Size: Medium (Fits calf circumference 23-26cm / 9-10 ¼ in) Compression Level: 18mmHg (Graduated) Color: Green / Black Condition: New in Box Material: Hospital Grade Synthetic Blend Size Medium: Specifically designed for a calf circumference of 23-26cm (9-10 ¼ inches).