Yes, they do indeed run small,
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This review is from: ALL BLACK Women's Eel Combo Ballet Flat (Apparel)
I fell in love with these shoes online and even more so when I opened the box. Reviews state they run small. Being a size 10, I ordered an 11. I was crestfallen when I put them on my feet. Too small. I wanted them to work so badly. I'm not even sure a 12 would have fit. The two stars are for the shoes themselves; the look of them and actually quite cushiony inside the shoe.