VERY NARROW opening. My father could not get his 9.5 foot into the size 10 slipper opening.
The manufacturer just needs to open the top of slipper. Make the top opening larger. The rest of slipper looked awesomely warm and comfy. Sad they didn’t fit dad on Christmas.
Pros
For comfort at home with no socks. Love them
Cons
They may not be suitable for those with foot conditions such as plantar fasciitis