Yeah me neither actually. It kind of doesn't really make sense to me but it is a look I've seen done well on this site. And I'm interested in ways of wearing my sports coats casually, in this very casualified world we're living in. The truth of the matter is, if it can't be done (or is very difficult to do) then I find myself questioning whether there is actually a need for sports coats at all in the modern gentleman's wardrobe. The opportunities to wear them for formal situations are just too few and far between to justify the relatively high expense. And I love them as individual items of beauty in their own right, so I keep looking and trying to find ways to wear them casually.
Personally, I just wear my sport coats the way they were meant to be worn. I try and go to nicer places and do things where they’re not out of place. Or I just decide not to care that day that people are in sweats or whatever