I ordered these in 8.5 (I usually take an 8) because the other reviews said they run small.  I should have ordered an 8, they are a bit big.  I am keeping them, because they are so very comfortable.  I can walk all day in these & not think about my feet.  Lots of toe room & being a mary jane, they stay on.  I have a narrow heel, which makes pumps hard to wear (they don't stay on), even with a heel pad.  The heel height is perfect for all day wear & lots of walking.  After I bought these I had to buy another pair from Miz Mooz.  This might be my new favorite brand of shoes.