Hello! Welcome to our factory outlet store!! ●Spring knee support technology:An anatomically contoured patella gel pads surrounds the kneecap, double-sided metal spring stabilizers fit tightly with your knee joint. These special functional element strengthen side support and maintains joint stability. It effectively disperses pressure, keeping your knee warm, lubricating your joints. ●BEST CHOICE for sports protection and pain recovery. ●Overcome the defects of similar products. High-grade knee braces with no allergies and itchiness. Metal spring stabilizers and patella gel pads won't fall off easily during using. Non-slip silicone strips and high-elastic fabric to avoid up and down sliding and tumbling during exercise. Description: Material: Nylon Color: black, dark gray,Black blue, black red Number of yards: M, L, XL Size: M code: Length: 28cm, upper mouth circumference: 34-54cm, lower mouth circumference: 30-50cm, suitable for weight 50-60kg L code: Length: 28cm, upper mouth circumference: 36-58cm, lower mouth circumference: 32-54cm, suitable for weight 65-75kg XL code: Length: 28cm, upper mouth circumference: 39-62cm, lower mouth circumference: 34-58cm, suitable for weight 75-100kg Notice: 1.Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before your purchase. 2.The colors may have different as the difference display,pls understand. 3.Please leaving a message before you give the bad feedback, if the products have some problems. Packing list: 1Pcs* Knee Brace 1Pair * Knee Brace (Send According To Order Options） Move to and click tag 【STORE Rating】to buy more products you need in our store by touching 【Visit Store】. We look forward to your five-star comments~