Chronic Venous Insufficiency (CVI). Farmalastic Antibacterial Sock Black Normal Compression are indicated for men or for ladies in cold weather, as they are thicker than stockings. They provide a compression of 22-29 mmHg. They contain silver thread, which reduces foot odour by inhibiting the growth of odour-causing bacteria. That is why they are especially suitable for people with excessive sweating of the feet. Contains 1 pair of socks in black colour and size large. To know the correct size it is important to measure the ankle and calf. In the case of the size corresponds to: - Ankle: 24-25 cm - Calf: 37-39 cm