Vulkan Neoprene Knee Support for unstable medial lateral ligaments, cartilage damage and rehabilitation after cruciate ligament injuries.... Removable carbon fibre hinges to control medial and lateral instability.... Open patella to help tracking.... Adjustable straps for improved fit and compression.... Appropriate for sports such as snowboarding and skiing.... Also ideal for use in occupations that may be particularly demanding such as fire fighting or construction work.... Measure around mid-section of the knee while in a standing position.... S=30-35cm... M=35-40cm... L=40-45cm... XL=45-50cm... ...Products in the Vulkan support range are of slightly higher quality than in the LP support range, hence the difference in price…