MD COMPRESSION SOCKS BENEFITS AND FEATURES: MD graduated compression socks systematically apply graduated pressure starting strongest at the ankle point decreasing upwards, thus promoting circulation towards the heart.Our Cushion design gives extra thickness and warmth.Minimizing the blood pooling in your leg veins because your muscles aren't being used, thus preventing the achy sensation in your legs and feet. These socks are knee high compression socks. Their compression Level fits mild compression socks and light compression socks, which makes them amazing compression socks for nurses. COMPRESSION SOCKS SIZING GUIDE (USA) Sock 9-11 | Shoe 5-10 | Ankle 9''-10'' | Calf 13''-16''| Leg Length 13''-15'' Sock 10-13 | Shoe 8-12 | Ankle 10''-11'' | Calf15''-18''| Leg Length 14''-16'' These compression socks are unisex models. Two size options available to pick from. MEASUREMENT METHOD: To measure yourself for a knee high +MD compression stocking, measure your calf at its thickest point and your ankle at its thinnest point. Match these measurements up with the correct table to find the right size for you. Measure the length of your leg from the bottom of your knee down to your foot to find the length you need. MD's medical compression socks are perfect for doing sports, they will enhance your performance and provide you with extra support to minimize injuries. THEY FIT THE FOLLOWING CATEGORIES: compression socks running, athletic compression socks, marathon compression socks, compression socks workout, cycling compression socks, basketball compression socks, running compression socks. They are also great compression socks for travel and great compression socks for flying, flight compression socks.