Features: COMFORTABLE WEARING: Made from polyester, soft and skin-friendly, breathable for daily wearing. HEATING SLEEVES: With heating spots on one side, extremely warm for winter. Just put them on to keep your legs warm. HIGH ELASTICITY: The fabric is very stretchy, it is easy to pull the sleeves on and off within seconds. Fits for different sizes. NON-SLIP: The compression style and elastic fabric makes the braces not easy to fall off from your legs. KNEE SUPPORT: The knee braces can protect your knees well and relieve pain. They are especiall good for torn meniscus, knee joint strain, sprain, tendonitis, arthritis etc. The leg sleeves can also improve blood circulation.