i bought a pair of these emus in the fall.  unfortunately, i had to get them a size too big since that's what was in stock.  wearing a boot too big seemed to make them wear down faster--they sort of sagged around my leg and i dragged my feet when i walked.  i made sure, this time, to get the correct size--one size down from what i normally wear.  i think they'll last longer now that i have the correct fit.  i haven't worn them this winter, though, as they're not snow boots.  with the light color, i'm saving them for dry days in the spring and fall.