Size:Measure 10cm/4inch from the top of your kneecap. L: Suitable for Thigh Circumference 30cm-45cm/11.8"-17.7". XL: Suitable for Thigh Circumference 45cm-55cm/17.7"-21.7". XXL: Suitable for Thigh Circumference 55cm-62cm/21.7"-24.4". 1.DUAL ALUMINUM STABILITY HINGES Our premium knee brace is equipped with plastic steel stabilizers on each side of the brace for maximum knee support and comfort. Positioned on both sides of the kneecap to help stabilize, relieve immediate pain, and reduce stress on your knees 2.OPEN PATELLA DESIGN The open patella design of our knee brace relieves pressure off your kneecap and ensures your patella (Kneecap) stays in proper alignment with the rest of the joint. Proper knee movement and tracking great for daily activities and exercising 3.Easily adjust the knee support brace to your liking with the strong hook and loop straps. Unlike closed patella knee sleeves, you can choose the amount of support you need 4. BREATHABLE AND COMFORTABLE Made with premium neoprene, nylon, polyester materials built for superior comfort, fit, and support. Lightweight and breathable so you can have all-day support during normal activities and comfort during your rigorous workouts 5.PAIN AND INJURY SUPPORT Get the long-lasting relief and support you need with dynamic gear Knee Brace for Women and Men. Helps support: Injured, weak or arthritic knees; Strains, sprains, knee instability; ACL, MCL, ligaments, tendons, muscles, and meniscus pain relief Package Included: 1 PCS Knee Brace Support(1 PCS 1 Pair)