I expected these to run a bit short so I ordered up a half size and the fit was perfect.  I have somewhat narrow feet and the width is great.  So for those with wider feet, these likely will not work.  There is NO arch support; repeating NO arch.  I'm ok with that as I have other better sandals for that but someone posted that there was.  The insole is quite textured which is why I ordered them.  I was looking for a pool/beach flip flop that wouldn't be so slick when wet.  I believe these will work for that but the ruff insole would certainly keep them from being comfortable to walk in much.  I ran around the house in them for a while then slipped back into my Olukai's and my feet had a little party they were so happy to be back in something better.  But they are cute and for the pool, great.  I would and am considering getting one more color.