Patented 4 Strap Attachment: 4 anchor points allow you to adjust the fit and compression to your desired comfort. The knee compression will feel like it is around the whole knee joint with even knee support | Stablity and Stabilization: The 4 straps combine with MCL & LCL flexible stabilizers creating a 'butress' like effect of giving whole knee stability, The mechanical advantage of this strap system is noticeable when stabilization is needed | Reduced Bulk behind The Knee: The 2 thinner straps which wrap behind the knee, may give less bulk and a feeling of more range of motion compared to most generic knee braces which rely on a middle strap behind the knee | Less Adjusting: Compared to 2 and 3 strap knee braces our testing and user feedback has shown the mechanical 4 point attachment strap system may require less need to adjust whilst exercizing in sports such as running, football, basketball hiking and basic walking. | Feel The Difference Vs Generic Open Patellar Stabilizing Knee Brace Designs - We ask you to watch the video read the feedback and see what real functional knee support should feel like. Check the sizing guide 20" maximum thigh 3" above the knee and 18" maximum calf width. Total satisfaction contact us for any issues regarding your purchase enjoy the product size guide [medium]!