RelaxSan unisex silver fibre support socks exert medium graduated compression (pressure of 18-22 mmHg at the ankle). They are ideal for chronic venous insufficiency, varicose veins and swelling. These support knee-length socks are also referred to as travel socks because they are suitable for people who make long journeys or carry out a job that is mostly static. They contain X-static Silver Fibre which has anti-bacterial, anti-static, anti-odour, thermo-dynamic and therapeutic properties, while the soft elastic band under the knee and the seamless toes provide you with maximum comfort. In order to choose the right compression level, please pay attention to the size chart and select the right size. Fabric content: 60% cotton, 22% nylon, 10% elastane, 8% silver fibre.