These were extremely comfortable shoes!  They have a very unique "tongue" that is a little snug (built in) and hard to squeeze the foot into the shoe.  I really loved the fit and feel, but when I walked around the house in them, the heals of my feet rose significantly out of the back of the shoe.  I gave them a couple of days on the carpet, but I could tell they wouldn't stay on as well as I needed them to.  I was disappointed, but returned them.  I really wanted them to work, as they were super comfortable all-around.  I did need to order a full size up for a good fit, as most of the other reviews stated.