In reply to DaveHK:
I avoid running in a waterproof at whatever cost. So.....
Actually running - Arcteryx Squamish, a lot nicer than a pertex windproof, it feels nicer against the skin and is more breathable (imo)
In the bumbag (good forecast) - Berghaus Vapourlight Hypersmock, very light and small, surprisingly good
Starting in really bad weather or in the bumbag (bad forecast) - ME Firefly Smock, active shell is a lot better than I thought it would be, great cut, smock, proper hood. This is what I wore on the 2015 Highlander MM in the driving sleet and low temps, it was spot on.