No one likes time spent recovering and out of action so any way of speeding up that process is always welcome medically proven to relieve pain and discomfort as well as promote healing the vulkan hinged knee support has been created to assist with medial and lateral instability of the knee cruciate ligament injuries post surgery support and acute chronic conditions requiring additional supportconstructed from 80 neoprene 10 elastic 8 nylon 8 carbon fibre hinge 2 polyester 2 pol