These fit under my UGG Boots, but not well under regular shoes/sneaks.Great indoors as slipper socks or with my Ugg slippers! Living in Upstate NY and being cold all the time, these are perfect for me. I wear a women's size 8 1/2 and got a large. The next pair I will buy will be a medium. Even though I wear them over regular socks and under slippers, they slip around from time to time. Unfortunately as of Jan '10 they are all sold out! Guess I'm not the only one that likes these. I only wish they sold them in their retail stores which I have just down the road from me.
These socks are great for around the house use in Winter. They are made well, very comfortable, and keep your feet warm. They are the best thing for Winter since Hot Chocolate!!