I love the Croc flip flops.  They are basically all I wear in the summer months.  Extremely comfortable, and if you have to be on your feet all day, these would be great for you.  I had to try twice for these brown ones however.  The first pair I ordered, it was like someone with a wide foot tried the right one on, realized it was too small and returned them.  It was so loose on my foot, I had to send them back.  So I got the second pair, and I didn't have that problem, but they seemed longer than others.  I wear a 9.5 shoe so I ordered up to a 10 like they said to do, and I think I could have gone down to a 9 with these.  I have some last year that are 9s and they fit fine, and I have some other 10s I bought this year that are fine.  Consistent sizing would be appreciated.