cost me $1000. but i got half back on medibank private.
i have a few issues with mine sliding down after big jumps and sand getting into it and bearing holes in my leg. hence i mainly wear a wetsuit these days which i hate.
The under sock and over sock that i bought are pretty useless. The outer restrict mobement too much and slips down all the time. The undersock doesnt stop the chafe.
http://www.gallbrosmedical.com.au/htdocs/Home.html