1. Exclusive patented spring knee support technology: The anatomically contoured patella gel pad surrounds the kneecap, and the double-sided metal spring stabilizer fits snugly against your knee joint. These special functional elements strengthen the lateral support and maintain the stability of the joint. It effectively disperses stress, keeps knees warm and lubricates joints. The best choice for sports protection and pain recovery. 2. The upgraded design overcomes the defects of similar products. Medical grade knee pads, free from allergies and itching. Metal spring stabilizers and patella gel pads will not fall off easily during use. Non-slip silicone strips and high elastic fabrics prevent sliding up and down and tumbling when exercising. 3. Innovative technology woven three-dimensional structure, knitting high-precision 3D cutting technology. Ergonomic: 360 degree perfect fit to the curve of your knee. Made of high-stretch, tight-fitting, breathable compression fabric to reduce knee stress and pain. 4. Comfortable experience The air knitted fabric can instantly absorb and evaporate a lot of water, and cycle breathing. Breathable, quick-drying, sweat-wicking, lightweight. Thicker than other knee protectors for extra reinforcement without sacrificing comfort so you can wear them all day 5. Multifunctional medical grade knee brace for meniscus tear, arthritis, ACL, joint pain relief, sports injury recovery. Widely used in weightlifting, basketball, running, jogging, volleyball, CrossFit, gym, tennis, hiking and many other sports Unisex, please refer to our size chart to choose. Delivery Quantity: 1 Piece Product color: black blue Product size: about 32cm in length, about 35cm in circumference at the top, and about 29cm in circumference at the bottom