Spring Knee Support Technology: An anatomically contoured patella gel pad surrounds the kneecap, and a double-sided metal spring stabilizer fits snugly against your knee. These special functional elements reinforce the lateral support and maintain the stability of the joint protection. It effectively distributes stress, keeps knees warm and lubricates joints. The best choice for exercise and pain recovery. Medical grade knee pads, allergy and itching free. 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 during exercise. p>Innovative technology---weaving 3D structure, knitting high-precision 3D cutting technology. Ergonomics: 360 perfect fit to the knee curve. Made of high-stretch, tight-fitting, breathable compression fabric to reduce knee stress and pain. Comfortable experience --- Air knitted fabric can instantly absorb and evaporate a large amount of moisture, circulating breathing. Breathable, quick-drying, sweat-absorbent, lightweight. Thicker than other knee protectors for extra reinforced comfort without sacrificing so you can wear them all day long! Multifunctional --- Medical grade knee brace for meniscus tear, arthritis, joint pain relief, sports injury recovery. Widely used in weightlifting, basketball, running, jogging, volleyball, gym, tennis, hiking and many other sports! unisex, Number of pieces shipped: 1 piece Product color: black Product size: (about) length 16cm, top length 15cm, suitable for leg circumference 30-36cm