Same here - found it a pretty interesting read and something to pas the time after the long weekend making work drag (Still here as we have a 6pm finish after 8.30 start first day of the week)
The thing that amazed me is that it is to make it lighter - in my mind surely it wouldn't make that...
Pretty sure there are differences in the way they are made?
I know all of the fuss about the England shirt being £90 was because it was the stadium shirt and therefore had differences in make to mean it caused less irritation while being worn. They were Nike so i would assume there is similar...