Just thought that I'd add a few words having worn this for something like a month in the manky weather of London, Vancouver and their environs.
I'm more than impressed with it. I know that well designed synthetics from Arcteryx and the like are lighter etc, but I have to say that this shirt makes an excellent component in a natural-fibre set up
Hiking in the cold on snowy ground in drizzle last week, I had on merino longs, this Guide shirt, a Swanni Rover zip jacket and a polycotton jacket over the lot. I have never been so comfortable - it was like being in bed when you have just woken up and realized it is an hour too early - only walking around

It is great for the hill, round the house, the garden, in the shed. The pocket is waaay more useful than I ever imagined. The general structure of the shirt means the pocket can hold a lot of junk without pulling all over the place.
It is warm like shacket warm - but much more so than the Pendletons I also wear. It will need patching on the elbows, in time.
And, when the lottery comes in, I am going to get a green one
