[zeveb]

> I think the real difficulty with these business models is that the sizing numbers vary WILDLY across retailers

You're right, and the crazy thing is that men's[1] sizes should be completely bog-standard: they're supposed to be lengths in inches. There's no reason why I wear anything from a 29" to a 32" long pair of trousers, depending on the manufacturer.

I'm well aware that ready-to-wear will never fit as well as tailored; that's fine. But there's no good reason for lengths to vary so wildly.

[1] Women's clothing is different, because women's proportions have a much higher variance than men's.