Saphena Anti-Embolism Below the Knee Stockings with Grips Saphena anti-embolism stockings is a product you can trust when it comes to helping reduce the threat of blood clots forming in your legs. Saphena anti-embolism stockings provide pressure to force blood back towards the heart with graduated compression which is strongest at the ankle and reduces further up the leg. Saphena is a Class 1 medical device and conforms to the latest European Standards for graduated compression and also complies with the Medical Device Directive. The compression profile of 18mmHg (ankle) and 14mmHg (calf) is in line with British Standard 7672:1993. These stockings also have an anti-slip grip on the bottom of the foot. With Saphena Grip, at-risk patients benefit from the proven DVT protection of the leading anti-embolism stocking as well as the confidence of having a grip sole to reduce the risk of falling on slippery surfaces such as laminate or wooden flooring. This product is available in 4 sizes including Small, Standard, Large and X-Large. They come in White. They are machine washable and made in the United Kingdom. The material composition is 85% Nylon, 15% Elastane. Extra Product Details Saphena Anti-Embolism Socks - Below The Knee Length - Reduces The Threat of Blood Clots - Non-Slip Grippers - A Class 1 Medical Device - Graduated Compression - 18mmHg (Ankle) and 12mmHg (Calf) - Creates Circulating Blood Flow