A further comment which people seemed not to have "cottoned" onto
It's alright wearing as much flame retardent material as possible, but why then do so many people (It's getting more and more noticeable) spoil it by wearing a High Vis waistcoat over the top that'll nicely melt into you given half the chance.
If you have to wear it airside then so be it - but take it off when you don't!