I'm very pleased with this purchase and I think they are a good deal after looking at the ugly cloddy overpriced stuff out there.  They look exactly like the picture, lining and all.  My shoe size is 10 1/2 - 11.  I ordered Large 11-12.  I thought at first they might be a little snug with socks on but they quickly conformed to my feet and slip on and off now with ease.  The memory foam actually seems to work supporting what little arch I have.  The soles feel a little narrow for my sprawling feet, giving a side to side rocking like I might tip off feeling, but I'm used to it now.  I'm not WALKing FOR MANKIND in them just out on the back porch for my dogs.  They are comfortably warm without ever feeling balmy.  The fake leather is one of the best.

Mid-March 2013:  They continued to "conform", as in stretch.  They're still comfortable, but a bit loose.  If you step outside in them be very careful not to get them damp.  They recover, but may take on a soft scent of ripe gym socks.  Truly, it was not my feet.