Snow Peak. It's a Japanese brand founded in '58 I think - used to focus on outdoor goods but now they sell traditional Japanese clothes with updated and upgraded materials. They have some very trad outdoors wear and wax jackets that imo rival Barbour.
The clothes I have bought from them, while expensive, are lifetime quality. I can see them being handed down generationally. That raincoat is coated with pine resin and wax, for example. Sustainable, minimalist, well made, what more could you ask for? Their OCBD's are AWESOME, too.