these shoes are comfortable but i wouldn't recommend them for very long distances.  i've worn these shoes several times before and i've never had any discomfort.  however, i made the mistake of thinking they were so comfy that i wore them while taking my dogs on a three mile walk.  somewhere between the distance and sweat, i started to form blisters on the bottom of my toes from the bumps (ironically, these are an ergonomic feature) on the insoles.  actually, if you remove the insoles there is considerably more room in the shoe.  i think they run true to size, but it's the insoles that make it such a snug fit.  if you find them to be too tight, i would recommend switching out the insoles for a thinner one to see if that helps.

i get a ton of compliments on them and everyone is always surprised when i tell them they're crocs.  as one reviewer pointed out, they are similar to toms but the bottoms on these shoes are more durable in my opinion.  i do like the simple design and having the ease of a slip on which is convenient for airport travel.  also, i've been told they make my foot look smaller which may be desirable to some people.  overall, i am still pleased with these shoes and i plan on getting them in additional colors.