uniform

I recently got this jacket and I was wandering if someone could shed any light on it as I don't recognise the design. It's definitely British as the label is stamped with the broad arrow due to the colour I'm guessing R.A.F or civil defence? The cut is a little reminiscent of battledress...

I've been trying to work out what these trousers are, they don't look like regulation officers pinks or greens. Any information would be much appreciated! Pilot backstory: At the outbreak of war John Trevor Godfrey enlisted with the Royal Canadian Air Force. He transferred to the 8th Air...