How would you describe this with pics

[CaramelEmporium]

I want to buy a smarter version of this, a lined version. But I’m at a loss as to what to put into the search. Overcoat? Coatigan? What’s the neckline called? The material on this is just polyester. I want something lightweight and more cardigan than coat. Any ideas / pointers please. TIA

Is this one close enough?
Uniqlo navy coat S/XS | eBay

That’s sort of style but I want to buy new. Overcoat inverted collar seems to be throwing up some
options.

Fair enough. I think I searched 'single button lightweight coat'

Duster jacket??

inverted collar ponte coat
inverted notch collar knit coat

Cocoon coat