Thanks AdamI love it.
Mine is the "smoke" colour which is a grey waxy canvas with brown strap. Really well made and the kind of bag that really ages well.
They are expensive, but they are one of the few bags that will probably last you the next twenty years and still look great.
That said, I do like the Hadley Pro and was thinking about picking one up at some point as an alternative. I'm sure you'd be happy which ever you go for!
I personally wouldn't look at another manufacturer other than F-Stop, their gear is good quality and infinitely customisable to your own needs. I've gone through a few gear changes and still have the same bag and ICU's.
Here is my Tilopa BC with the Large Pro and some gear.
I have a Lowe Pro Vertex 200 for humping the majority of my kit around.. I am attending the Goodwood Revival this year in costume and needed something smaller and more discrete, preferably vintage looking. This was cheap, holds a 5D III with 70-200 + a lens or two and some odds and sods and looks like some old Army surplus. Used it a couple of times, seems up to the job.