Made with advanced gradient pressure knitting for support and aid in muscle recovery, calf sleeves are ideal for running, cycling, hiking, sports and general exercise. Our sleeves offer a moderate compression to re-energize and support your legs​. We don't recommend them for more sedentary activities like travel. Since compression sleeves stop at the top of the ankle, they're not as effective at preventing swelling. True graduated compression socks or full tights, on the other hand, are very effective at preventing swelling and are perfect for any occasion - sitting or standing for long periods, workouts or travel. These high-functioning sleeves help: Energize legs Alleviate achiness and heaviness Stabilize muscles & reduce soreness Aid in muscle recovery Compression level: 15-20 mmHg Material: 91% Nylon/9% Spandex (Latex-free) Designed in Missoula, MT. Made in Taiwan.