These are comfy and sturdy at the same time! They looked so narrow and were kind of too tight, almost sent them back, but I know these sherpa slippers stretch easily, and when I open the rest of the box , low and behold, it states right there how they stretch to fit, so I kept them and so glad I did! I can wear them outside too! I'm typically a size 5, fitting anything on my feet is difficult, I'm so glad they don't flip off my heal either, go get them!