It is the California tux. It's not intrinsically a bad look, as we can see here (though I think these are still boring in a bad way and hardly creative interpreations). But it's the iterations of the look worn to more formal occasions, with metal buttons and horrible shoes, and ill-fitted in every way, that give it the poor reputation it may or may not deserve. I like the first guy better. The fits and cuts are nicer. The second looks a bit sloppy and self-conscious. BTW, there is no rule that says casual clothing must be loose. Moleskins and cords are traditionally cut slimmer than normal suit trousers, for example.