And again, yes, that is a much better stylish idea to wear a white sneaker that is flat rather than the ones a bit higher like a running sneaker. Just like the ones in the looks below. Check it out:
With a khaki chino and a denim shirt. And yes, here a brown belt is the perfect bet. You could have left the belt out of the look as well. And yes, although it is great to leave a bit of skin between the sneaker and the pants, you could have picked pants that would cover it all.
The nest look it is an all dark look with a little bit of light splashes via shirt. And yes, the shirt could also be dark for an all dark look.
The third look is a more tailored pants in a light shade of gray and a no collar shirt. Of course that a standard collar shirt could be used instead but this one is also an option. Keep that in mind.
Those are more dressier looks. A tailored pants and a blazer with a stripped t-shirt. Classic, straight to the elegance point.
The next one involves a suit. In this case with no tie. But of course you could wear one. A slim tie would be a better option but any tie would be possible. Really. But a pocket square is also a good accessory. With or without the tie.
The other look is an all-black look with a coat and turtleneck. Elegant, understated and yet dramatic by the black and white contrast. Actually, the all-black and white sneakers is one of my favorite looks to sport the white sneakers.