The memory foam slippers I received are very nice-----they have a tongue like appendage that can be folded down on the body of the slipper or folded up to cover more of the top of the slipper. They are not the most attractive slipper in either mode, but are quite comfortable. There are no instructions with the slippers, but I soon found out that when inserting your feet in them, make sure the toes are as far in as possible, or you will feel an elevation in the heel area, and a feeling of insecurity when you walk. This is completely gone when you insert your feet in completely. I would also recommend that you order a size 1/2 or 1 size larger than your shoe size. Otherwise the slippers will be too small.For those who are looking for a "pillow top" slipper, I would recommend them, but as I said before,they are not the most attractive design in the world. I am very satisfied with the slippers that I bought. I wear a 9 1/2 shoe and ordered a size 10 slipper which was perfect