I'm a 6'3" American, not a 5'8" Italian. Therefore, I fit into almost nothing at places like Nieman Marcus, H&M, Zegna, etc.
My choices are solid white or solid blue in broadcloth. My other half just quit trying since every time she finds a gorgeous shirt it simply won't fit.
I would learn tailoring except I can't get the really nice fabrics. I have tried taking pictures of nice shirts and then trying to find the fabric. Everybody looks at me like I'm completely insane (effectively--if I'm not buying 10000 yards, I'm not worth talking to).
So, if Bonobos really wanted to up-end the business, instead of making clothing that makes you look like every other Wall Street douchebag, they should figure out how to construct one-off clothing in any appropriate available fabric in the world cost effectively.
Women would knife each other to guarantee that their dress is genuinely unique.