Saphena Thigh High Anti-Embolism Stockings: Saphena anti-embolism stockings help reduce the risk of blood clots forming in the legs, especially during recovery or periods of limited mobility. They use graduated compression, strongest at the ankle (18mmHg) and less at the calf (14mmHg), to improve blood circulation and help blood return to the heart. By compressing surface veins and muscles, they reduce blood pooling in the feet. Saphena is a Class 1 medical device that meets the latest European Standards and complies with the Medical Device Directive. It also conforms to British Standard 7672:1993 for safe graduated compression. This is the thigh-high version, ideal for those needing full-leg compression. A below-the-knee version is also available. Both versions offer the same clinically proven support. Available in 4 sizes: Small, Standard, Large, and X-Large. Colour: White. Machine washable. Made in the UK from 85% Nylon and 15% Elastane. Extra Product Details: Saphena Anti-Embolism Socks Thigh High Length Reduces Risk of Blood Clots Class 1 Medical Device Graduated Compression 18mmHg Ankle / 14mmHg Calf Improves Blood Circulation 4 Size Options Made in the UK Machine Washable