"I wear a size 8-81/2 in most shoes. The 8 fits perfect after about a week of wear. They stretch a little with wear. Soft and warm in the winter. Love that they have a real sole on the bottom in case I need to run outside for a second. This is my fourth pair of the same slipper. After about a year or two the insides just flatten out and it's time for a new fluffy pair"