You make shoes/slippers and what is the number one thing you need to get right? The size of the shoe.  I wear a size 13 for the past 30 years and must have bought several dozen shoes.  Most of all of them I could fit into except these.  They are not 13 but size 12. And that is why the 2 star rating.  Shame because they are a 4 star for the price otherwise.