As we in the household an older, very similar pair of slippers (other manufacturer's label) without negative anomalies have, (esp. The sole and edge of felt are fairly typical), I've assumed that that is already fit. So you can be fooled.
For the return I was too lazy, at the same time I had the hope that the smell disappears quickly - your own fault.
For many reviews this G'schmäckle seems nonexistent. It's either catch enormous variations in quality or .. or what?