I ordered a 7.5 and a 8 cause I wasn't sure which would fit.  I wear at 7.5 normally but had to go with the 8 cause I seriously could not get my foot into the 7.5. I finally got my foot into the 8 with alot of pushing, I was actually scared I wouldn't be able to get them off.  But my sister in law has these boots too, and she said she had the same problem but with time the will fit just right.  The day after trying them on, I had bruise on the top of my feet! be careful on what size you get.