I have a few ventless jackets and suits. I generally don't wear them.

For a long time I've thought them old fashioned and somehow not looking right from behind.

They actually look alright from the front, but the only ventless jackets I see on others are generally bad fits so I don't have any reference. And I can't get a look at how they look from behind on me. I suspect they look too straight from the back and sort of funny around the arse. Strangely I feel ok in one - a loverly grey Harris Tweed looking thing with a slight red line /check and slightly shorter than I generally wear. I wear it with jeans sometimes.

What to people think?

I don't want re-assurance of a generic kind - I'm interested in over thinking this as is my habit with most things in life.

How do youse people see a well enough fitting ventless jacket from behind?

What are the elements that say - out of style, wrong etc and what says its ok.