COMPREHENSIVE PROTECTION:2 spring are sewn on both sides of patella, this knee support stabilizing will fit perfectly with your knee joint, so it will prevent potential sports injuries without sacrificing your mobility! Specially designed extended support strap are highly adjustable that ensures a snug fit from back to front, easily find the best fit for you!Keep you doing what you love to do!!! ADJUSTABLE AND DURABLE: Before purchase, please measure the leg circumference 4 inches above the knee. Please check the picture in the list for the size chart. Our knee brace patella knee strap are suitable for 12-24 inches leg circumference. It can be worn on the right or left knee, directly on skin, or over leggings, pants, compressions knee sleeves. TARGETED RELIEF & SUPPORT: Hidden soft and elastic spring support bars are placed on both sides of the knee joint support to significantly reduce the burden of kneecap and provide appropriate support for your knee joint stability. This knee brace patellar tendon support strap effectively prevent meniscus tears, strains, and Sprain, relieve ACL, LCL, MCL, osgood schlatter,relieve tendinitis and knee arthritis pain. Comfortable and breathable: This patella knee straps is made of high-quality nylon which makes it light & soft, so you don't feel any weight on your knees.Two no slip silicone strips ensures that compression is uniform and stays in place for wherever and whenever!Open patella and air vents back design will avoid pressure to patella and sweat accumulate.Keeps knees dry and prevents odors even after prolonged use. 100% LIFETIME GUARANTEE: We offer a 100% Risk-Free Lifetime Guarantee to let you buy with confidence and just to let you know that we are standing behind our knee band always. So, order now and get this incredibly adjustable knee straps to get immediate relief for knee pain.