Drake's or Scott & Charters perhaps.
How to layer knitwearRead the comments
Absolutely, anything but the very darkest browns. You want them to be almost as dark as the trousers, if not darker
The mock neckRead the comments
I'm afraid I haven't looked for RTW flannels like that for a while Jerome, so I won't be much help. But the first places I would look would be Anglo-Italian, Drake's, and Berg & Berg
Suit style 9: Trouser cuffs, belts and tabsRead the comments
It was Lesser's I believe, but the same shade is very unlikely to be available. Any flannel from them or from Fox I think would drape just as well. Do let me know if you remember or find the comment
How I get dressed in the morningRead the comments