Compression socks are ideal for when you are travelling, sitting all day or being on your feet for long periods of time. They provide gradual compression from your ankle up to your leg, soothing and massaging your legs and your feet. In addition, they improve circulation and prevent painful swelling. Choice of 2 sizes: Small/Medium (fits UK Shoe size 5-8.5), Large/X-Large (fits UK shoe size 9-12). Fabric: 90% Polyamide, 10% Elastane. Machine washable at 30c.