i can't speak to their comfort as i only just discovered my shoe size and thus had to wear these with inserts on top of the ones they came with, making them ridiculously heavy.in terms of quality, though... the sides got little rips very quickly after i started using them. i don't even walk that much. then when i got kittens with a foot fetish (as many apparently have), they quickly widened those already-medium rips along the sides of the shoes into very large rips.anyway, i guess seeing the the... frame part of the shoe was interesting? the rips didn't affect my ability to walk in the shoes, they just looked bad and i probably wore them for longer than i should have regardless. they also ripped extremely quickly. ah, and some of random crumbs and debris under all of the inserts may have been thanks to the rips, in hindsight.