I took a look at the Tilley website on the off chance there may be some clues there.
I noticed this during my browsing:
The tag line talks about how it is not your grandfather's army jacket, but was inspired by it.
I only stopped wearing mine a few years ago, or so it seems.
Technically, I suppose they are correct.
Biggest thing to notice is that they are charging over $300 regular price for a knock-off of the old Wrangler-style combat jacket that most were, I think, happy to dispense with in favour of CADPAT...