The chrysal leg looks like something Elton John would wear.
It not that long ago these would have been iron/steel and wood. How things have changed.
I believe the first head of the British MI6 had a wooden leg. If he was sat down and in an argument he would stab it with a knife. He said he loved to see the face of the other person because they did not know it was wooden.
He lost his leg in a car crash which was miles from anywhere. He was trapped by his leg and the only way out was to cut his own leg off. That is one tough nut.