Features: 1. Copper Knee Brace: Ergonomically designed knee support with optimal compression for arthritis pain relief and joint protection. Provides cushioning and pressure dispersion around the knee joint, helping improve blood circulation and reduce the risk of injury. 2. Scientific Design: Precision 3D knitted construction with high-elastic, breathable compression fabric that fits snugly around the kneecap for 360° support. Ideal for sports activities and recovery. 3. Targeted Support: Designed with copper-infused fabric that helps reduce discomfort and supports muscle recovery. The material helps maintain warmth around the joint, which may reduce stiffness and swelling. 4. Comfortable Fit: Features non-slip silicone strips and stretchable fabric to prevent slipping during movement. Lightweight, breathable knit material wicks away moisture, allowing for comfortable wear under clothing or during sleep. 5. Versatile Use: Suitable for various physical activities including hiking, running, cycling, gym workouts, weightlifting, basketball, volleyball, and tennis. Specification: Material: Nylon Color: Brown Size: Length x Fit Leg Circumference S: 25 x 30-36cm M: 26 x 36-42cm L: 27 x 42-48cm XL: 28 x 48-54cm Weight: 57g Package Included: 2 x Copper Knee Sleeves