[Adjustable Hook and Loop Fastener] Features an extended support strap for the knee patella. Made with high elasticity and fixed compression, allowing you to adjust the tightness for personalized support. The open and adjustable design ensures a secure fit on the knee, offering enhanced stability and reduced slippage compared to similar products on the market. [Comfortable and Breathable] Constructed from high-quality polyester fiber, the knee brace is skin-friendly, odor-free, and features a mesh design. The inner fabric is in direct contact with the skin, providing sweat absorption and breathability to help prevent skin irritation. Offers excellent shape retention and delivers comfort and support during use. [Stable Support] Equipped with hidden soft and elastic spring support bars on both sides of the knee joint to help disperse pressure during activity. Provides consistent compression and joint support, helping to prevent meniscus tears, strains, and sprains. Aids in relieving discomfort associated with ACL, LCL, MCL, tendinitis, and knee arthritis. Offers supportive assistance during physical activity and recovery from sports-related injuries. [Comfortable Ergonomic Design] Designed based on the natural curvature of the knee and leg. Features left and right knee-specific construction for improved ergonomics, ensuring a more precise fit. Delivers balanced support and comfort from all angles. [After-Sales Service] Prior to purchase, measure the leg circumference 4 inches above the knee. Refer to the size chart in the product images. Designed to fit leg circumferences from 13.8 to 23.2 inches. If you have any issues or feedback, we are committed to addressing your concerns to ensure satisfaction. We strive to provide high-quality products and customer service.