Feature: 1. Self Heating Function: This leg compression sleeve utilizes graphene technology with self heating function to effectively keep your knees warm and relieve joint pain. 2. Non Slip Design: This winter warm knee brace features a non slip design that fits your knee firmly and is not easy to slide, providing stable conservation. 3. High Elasticity: This knee brace support Pad is highly elastic, soft and comfortable, skin friendly and breathable, warm and comfortable to wear all day long, keeping your knees and legs warm on cold days. 4. Multifunctional: This winter knee warmer provides 360 degrees coverage and helps keep your knees and legs warm in cold conditions, relieves pain and prevents rheumatoid arthritis or osteoarthritis of the knee. 5. Wide Application: This knee brace sleeve has a wide range of applications and can be used for cycling, biking, motorcycle, snowboarding, skiing, camping, hiking, mountaineering, running and other outdoor sports activities. Specification: Item Type: Winter Warm Knee Brace Material: Graphene Fiber, Latex Silk, Nylon. Package List: 2 x Winter Warm Knee Braces