[Adjustable Hook and Loop Fastener] Features an extended support strap for the knee patella. Made with highly elastic, compression fabric that allows you to adjust the tightness for personalized support. The open and adjustable design helps keep the knee brace securely in place, offering enhanced stability and reducing slippage compared to similar products on the market. [Comfortable and Breathable] Constructed from high-quality polyester fiber, this knee brace is skin-friendly, odor-free, and features a mesh design for improved breathability. The inner fabric is soft and absorbs moisture, helping to keep the skin dry and comfortable during use. Offers good shape retention and provides consistent comfort and support. [Stable Support] Equipped with hidden flexible spring supports on both sides of the knee to help distribute pressure during activity. Provides moderate compression and support to the knee joint, which may help reduce the risk of strains, sprains, and discomfort associated with tendinitis, ACL, LCL, MCL, and knee arthritis. Offers support during physical activity and recovery. [Ergonomic Design] Designed to follow the natural curvature of the knee and leg. Features left and right knee-specific construction for a more precise, comfortable fit. Delivers multidirectional support and enhanced comfort during movement. [Customer Service] Before purchasing, measure the leg circumference 4 inches above the kneecap. Refer to the size chart in the product images. This brace fits leg circumferences from 13.8 to 23.2 inches. If you have any issues or feedback, we are committed to assisting you until you are fully satisfied. We strive to provide high-quality products and reliable customer service.