I have these and so I will second this. I sized down 1 full size from my normal dress shoe size. They are extremely comfortable and I am coming up on having had them for 2 years (in about a month) and they have held up really well. Cheaper slippers that I had in the past were always trashed within a couple months. These still feel nice and cozy. And fuck slippers that don't surround your ankles, those are bullshit. I want my whole foot to be warm, thankyouverymuch.