Unique Self-Centring Hinges Made From Nylon Composite (Not Steel) Offer All The Functionality As Those Of Our Mustang Brace. Easily Worn Under Clothing And Designed To Provide Protection And Prevent Injury During Active / Extreme Sports. Also Helps To Protect Old Injuries. ** The Pinto Brace Is Excellent For The Support Of Mild Instabilities Of The Knee, For Situations Of Mild Acl, Pcl Instability And Lcl Or Mcl Tears. The Added Benefit Of This Particular Brace Is That It Can Provide Support To Users With Patella (Knee Cap) Problems Providing Extra Control Of The Knee Due To The Open Patella Design. Unlike Many Other Support Braces Available At Present, The Pinto Has Removable Hinges And Thus Can Be Used Not Only As A Stand Alone Knee Brace, But With The Advantage Of Being Used As A Compressive Support With The Hinges Removed. ** The Pinto Is Ideal For Situations Where Some Control Of The Knee Is Required Against Lateral, Rotational And Hyperextension. Can Be Worn As A Preventative Brace For Everyday Use And Activities Such As Ski-Ing And Motocross Etc, Etc. ** All Sizes And Colours Available ** For Measurement Of Your Particular Size, Keep The Leg Straight & Measure The Circumference Of The Knee. ( See Size Chart Picture Diagram Above) *Small -12½" - 13¾"- 32 - 35Cm, *Medium-13¾" - 15" - 35 - 38Cm, *Large -15" - 17" -38 - 43Cm, *X.Large-17" - 19" -43 - 48Cm, *X.X-Large-19" - 21"- 48 - 53Cm.