I'm not sure why they made a women's version of this and a men's, other than the issue of width.  I am female and purchased the men's version as I have slightly wide feet.  I have the Omni-Heat jacket, which I was shocked with how well it maintained my body heat without overheating- even indoors (such as shopping).  Totally impressed with the jacket.  So, since I was hunting for new slippers to ease my hardwood floor impact, I thought I would try these.  They are very comfortable.  No arch support, as one would expect from a slipper.  Not too hot.  Perfect width.  Size was 100% accurate for me.  Sole is tough enough to easily go outdoors if needed.  The sole is a waterproof, real sole, but not thick like a regular shoe would be.  Shape of slipper is very supportive of my foot.  No slipping off my feet, which drives me crazy.  I love these enough I bought another pair for when these need to be replaced.  It's so hard finding a good shoe/slipper.  Simple design, perfect for function.  Love it.