I've bought two pairs of these in the same size less  than 1 year apart.  The first pair was a good fit, while the second pair is much larger.  The Merrell slide is easy to put on and take off, but in this material, the lining is not at all durable.  I bought the second pair because the lining of the first pair wore out completely in less than a year.  Since the second pair is much larger, I've given up on this model and will order another material type when I replace these.

  Actually, I might just move on from Merrell altogether and try another maker, though I've been wearing Merrell shoes since 2006.