"Norwegian canvas". Never heard of it before, and oddly, googling it only appears to get hits if combined with "Cabourn" :-)
Wonder what miracle material this is?
Now there's a Spurs Cameraman. Love that yellow Aircraft Jacket.
A lot of shirts at Haven.
I can see that in my future (once it comes up on Marrkt at a massive discount, natch). I have this one from the previous season (which to my eyes is even cooler!):