I wore my other pair out after years of wear. When I am cold, these in-house slippers warm my feet (no other sock needed for me)  and I especially like that I can prop my feet up and the shoes are so much like socks, it is total comfort.  I can snuggle under a lap blanket to read and prop my feet out blanket and still be warm and toasty!  Last time I read the sizing incorrectly. So read the gender and US sizing carefully.  I use the small tag on the outside of each slipper to identity which foot is right and left! Slipper is wool, but I keep my house cooler in winter so slippers are perfectly comfortable and roomy for me!  I suppose, if the wool texture was too itchy, a thin trouser sock would do nicely and still get the warmth of the wool as the outer layer. Great item!!They are not very feminine, but very practical. Only gray was available in women's size I needed and because they were on sale after Christmas, I went for warmth more than color. There are green and red colors also. There are some look a likes online, but ACORN is the brand that has given me years of comfort and quality. Other brands and threads  (acrylic especially) stretch out more quickly. I did wash the other pair in cold and can't remember if I hung them, or dried on air cycle.  Best err on the side of caution. I don't wear them outside in grass (only dry cement for quick run to post box)...so they stay pretty  clean.