If outdoors, then cheaper and more versatile would seem to be a better option, surely?
Ever seen a duvet jacket in a climbing hut that didn’t have Gaffa tape holding it together?
And exactly how versatile is a down jacket? It’s very good at a) keeping you warm when you still and it’s cold and dry and b) keeping you warm when you’re active and it’s extremely cold and dry.
Not cheap either!
How versatile is any outdoor jacket, if you really want to start getting pedantic; really waterproof jackets can get hot if you’re involved in pretty active pursuits, you end up a boil-in-the-bag human, lighter weight waterproofs don’t tend to keep heavy rain out for very long, and both generally need other layers.
There are serious, and expensive down jackets which are waterproof, but for average British wear an ultralight down jacket can be as versatile as any other, they’re easily packed into a small bag, and some, slightly more expensive ones have treated down which doesn’t clump, and along with a treated outer shell can keep a fair amount of damp out.
I’ve got a NF Nuptse that I bought with a £250 work lottery win fifteen – twenty years ago, that doesn’t get worn so much because winters just aren’t that cold now, but is in perfect condition, a couple of Uniqlo ultralight down jackets, about £65-70, that get worn lots over tee shirts on cool days, a similar Decathlon jacket for work that cost £40 and a Jottnar Fenrir, which costs £200, but I got mine through an end of season sale for £139, and I wore for several hours in persistent rain without it soaking through except a bit across the shoulders, and which I think is a perfect jacket for most of the year in the UK, with just a cheap PU waterproof chucked over the top if it got really wet.
https://www.jottnar.com/uk/mens/down-insulation/fenrir/
Oh, and Jottnar are a small British company not aimed at beardy hipster types who wear their sister’s jeans, tweedy waistcoats and bow ties.
😀