I can’t thank Sean enough. I had been suffering from piriformis syndrome injury from running for the last 6 months which I just could not shake. I tried everything, including replacing my running shoes twice, digital video gate analysis and finally referral to physiotherapy. I happened to see Sean re: a persistent verruca and split nail. Sean spotted immediately that I had very flat feet and recommended I consider orthotic inserts. Well. What can I say, within days of wearing them the piriformis syndrome has gone. I now wear the inserts all the time and just transfer them from shoe to shoe as I find they help even when walking.