1.Elastic,Nylon,Spandex 2.[Highly Elastic Fabric ]Made of high quality 68% nylon and 32% spandex. Designed for all day comfort, flexibility moisture wicking, anti-odor, breathable & ultra-durable, doesn't roll, slide or slip down, enhance circulation & oxygenation of the blood thereby increasing muscle performance & accelerate recovery of injured muscles, joints & much more. 3.[Knee Compression Sleeves]A professional knee sleeve acts as a brace to support your knee, relieve the pain and reduce inflammation like arthritis, tendonitis, and bursitis, prevent meniscus tears, stabilize the patella, and protect the tendon. Perfect choice while doing exercises or recovering from injuries. 4.[Upgraded Details with Considerate Designs]We've reinforced the toughness of the spring stabilizer on both sides to distinguish from others that the inside spring stabilizer breaks suddenly while running or jumping. Thanks to anti-slip strips on the top, the knee braces for knee pain won't slide off or roll up and down. 5.[Universal for men and women] Please refer to our size chart to selection. Available in a variety of colors, which are very suitable for women men who like sports and need to protect their knee joints. It is a thoughtful holiday gift. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store