On the positive side, these slippers are toasty warm on your feet which was just what I wanted. Here's the problem. The inside sole of the slipper is not flat, or rather it's puffy in the middle to make it softer to walk on. This mounding in the middle causes my foot to either turn in or turn out. I returned the first pair I bought because the turning out was so pronounced. This pair I kept but I have to say I don't feel very stable walking in it and will not do stairs in my house wearing them. This problem is a shame because the slippers are quite cozy and cute.