Hit or miss if you order 1 pair of black and a pair of red, both times size 37th The Red fit like a glove, in the black I'm not even into it. Both couples have the imprint 37. The difference is so serious that you can see it already, if you put the slipper next to each other. Production error without control. Weak freestyle when producing for mail order. At least 2 stars because 1 couple sitting good and wears well.