The elbow patches were dropped - though this seems to have been an oversight since they reappear in the very next episode.
The tweed used came from W Bills and has been likened to a plaid, though it is not truly defined as such.
These images are directly scanned from fabric that was part of the bolt that was cut to make Matt’s screen-worn jackets. They have then been colour-matched back to the material to give the best visual representation of the fabric.
This can make the fabric a bit awkward to use when pattern matching, as the true pattern repeat is effectively 75mm.
Woven in 100% pure Scottish wool to a full width of 54 inches wide, it comes from the island of Shetland off the coats of Scotland.
This creates the distinctive diagonal banding in the stripes.