Yes to both, but scale, vividness of pattern, and texture all figure significantly. One of my favorite fall/winter looks (I do this and so does UrbanComposition) is flannel PoW check trousers with a navy jacket.
With odd jackets, I think it's a hugely underrated look, largely because people are afraid of having their SC mistaken for an orphaned suit jacket. It allows you to add a bit of visual interest to the "uniform." It's also a great frame for solid winter ties and grenadines (sorry-not-sorry, @semperexcelsius).
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I’m not sure the second is a Glen plaid, but perhaps the photo is deceptive. (Whatever it is I like it.)
It wouldn’t surprise me if opinions on this question vary depending on where in the world one is and how old one is. Regardless, you make a good point about the scale and vividness of the pattern and the texture of the cloth mattering.
My chief worry is that it’s a pattern that is so strongly associated with suits that any other use will always look orphaned, as you mention. But that’s an association based on the experiences of a baby boomer raised in the American northeast, where the Glen plaid suit was at times pretty standard business apparel. I don’t know how widespread that association is.
Of course the traditional Glen plaid jacket will resolve to medium gray at a distance, so one also encounters the pairing difficulties associated with that, but that’s been discussed quite a bit.
Anyone else have any thoughts?
Neither of those is what u mean amirite? If you mean the traditional Glen Urquhart check like this ..
then i would say steer clear for odds. It's a suiting, and as u say, resolves to grey (or blue, or whateva).
I'd particularly steer clear of it for pents. Patterned odd trews r bad at the best of times, but glencheck pents remind me of 70s hipster-gangsters.
As for SCs a grey SC in a glenplaid is probably the hardest to pair with anything because u have to rule out grey trews (unless they r much lighter or much darker).
As a suiting, in grey, I absolutely love it, particularly with a blue overcheck. My preference is for a relatively muted, low saturation check, so that it resolves to a solid from a few feet.