I tried the size 9 first.  My normal size.  I could barely get these on.  The zippers sewn way too small on both and even more so on right boot.  The right boot fit like a size 8!  The left fit like an 8 1/2.  (And that's with thinner socks).

Because I loved the boot those I ordered again...this time 9.5 size

Now the LEFT boot is smaller than the right and they both fit more like an 8.5 than 9.5.  The zippers on both are difficult to move up and down.  Tiny little thing to grab onto when the zippering is so difficult.

I am returning these as well and will not be ordering Teva products again.

By the way, these boots are Made in China.  You draw your own conclusions.