Note: 1 sleeve is a Single sleeve, it is not a Pair. Relief from foot pain and swelling! Get back to your daily activities without suffering from sore, achy feet. This anti-fatigue foot sleeve with three levels of compression gives support, boosts circulation and reduces swelling. This compression sleeve's breathable fabric is thin, comfortable and can be worn discreetly under socks all day or alone at night. Nylon/spandex. Machine washable. Can be worn barefoot or with your shoes and boots. Perfect for long distance travel, or while you walk/run, golf or work out. This is a revolutionary compression foot sleeve that helps relieve ankle and foot pain. It provides three levels of compression in seven different zones. Just slip it on and the sleeve will relieve you from tired, achy feet and swollen ankles. Feel the compression in your foot's ball, arch, plantar fascia, heel and ankle and immediately, you will feel a soothing relief. The targeted compression is just like a therapeutic foot massage that helps support your feet, stimulate circulation and reduce swelling. Lightweight and comfortable, you can wear it discretely under any sock. SIZE CHART: S/M: Women : Shoe Sizes 6-8.5 Men : Shoe Sizes 5-8.5 L/XL: Women : Shoe Sizes 9-11 Men : Shoe Sizes 9-10.5