Check this Barbour Repair Kit out.
A discovery by one of the OiPolloi main men, it has that reassuringly vintage smell. We’re not able to find any kind of date on it but it looks mid-late 80s to us. There’s a brilliant little catalogue booklet that comes with it, apparently printed down the road in Hale, Cheshire.
The pics tell it better than mere words though. Stuff like this is why Barbour is best.