Vulkan classic free knee 30 35cm knee free neoprene support made by vulkan with its opening on the patella this vulkan knee support has a stitched buttress which gives extra support to the patella the lightweight and durable material makes this knee support long lasting while the opening makes it comfortable to wear the vulkan knee free patella can be used for both everyday use during sporting activities and following an injury to the knee particularly the patella this vulkan knee support