Activa Class 2 Unisex Ribbed Support Socks | 18-24 mmHg Effective against early varicose veins and DVT. With moderate compression of 18-24 mmHg, new Activa Class Unisex Patterned socks are effective against the early stages of varicose veins. The compression level prevents swelling and helps prevent DVT, ensuring healthier legs. Easy to put on and take off, these unisex socks are suitable for men and women and offer improved levels of breathability for day long comfort. Created using a stylish diamond design with the texture of silk, these beautifully designed socks are smooth, comfortable and fashionable in all situations. Note: Always contact a nurse, GP or pharmacist to ensure that compression hosiery is appropriate for you. If so, you will then need to be measured in order to obtain the correct size which will ensure that the hosiery works correctly and feels comfortable.