vans eras make you look like a dead-end 30 year old frat bro in training. Really, though, they're all-white sneakers. Some CP's might pop up, or something - I'd sit on it.
edit: it's not as though they can't look acceptable, with slim, trim shorts and a short sleeve button down or something.
The canvas ones were part of the standard uniform of the local hardXline straightXedge scene. Vans eras, madras/j-crew style shorts, fitted polos, white t-shirt, some sort of hemp/bead necklace, and a baseball cap + shaved/cropped crew cut. Always a negative connotation in my mind (punks wore chucks or vans old skools, assholes wore vans eras... I think that still applies... ).