In one of the reviews a young lady wrote that these boots are like "wearing moccasins". I could do a happy dance with her right now! Oh how COMFY they are. I originally bought the size 9 1/2...OOPS, too small. I pondered over getting the ten, HOWEVER, something prompted me to get the 10 1/5. I have NEVER in my life worn that size...let me elaborate before I go any further.
I have a long narrow foot, something like a double A and a half. I also have those long skinny toes (C'mon, you're out there, you DO exist). So, with the 9.5 my big toe was right at the end of the boot. A size 10 I might not have  been able to wear a pair of thicker 'Wigwam' or any other brand of thicker sock. Sooo...I got the 10.5. Would you believe it fits JUST RIGHT? (too wide around my upper foot and ankle area. Mine are small and skinny)
Now, in other reviews I've read true to size, etc. Well ladies, I can only give you MY recommendation. Buy one size UP. I have other Teva products, i.e., sandals, mule shoes, but as I sit here right now wearing that size ten and a half, [like slippers] that's what I would recommend.
P.S. I got the dark dull grey as they were out of the larger size in my originalf purchase of the brown. The color is accurate both online and when you open the box.
Happy Shopping Ladies!
Rose
***UPDATE*** I have had a "booger of a time" with the zipper ~ in that, keeps catching on the small webbing at the bottom of the zipper. So...I cut it out. Didn't work. It's very stiff and hard to zip from the bottom. I have VERY thin ankles and have not been wearing thick and/or bunching socks.
Thought I would let you know.