Isotoner brand is way better than Dockers. Not that long ago I purchased men's Docker slippers for my husband. They seemed like very good, long lasting, strong wear slippers...NOT! Came apart within 2 months of wearing! I was so surprised. But it happened! Isotoner, so far has proven to be a much better made slipper. No wear at all! However, it has only been a tad over a month of use, sooo we shall see what happens in another month? But as I said, NO signs of the sole coming apart from the top of the slipper. They appear to be well made! I can say my  Isotoners (women's) are EXCELLENT! This is my 2nd winter wearing them, and they are still going strong. No signs of coming apart! I believe Isotoner brand is a good choice over Dockers. Maybe it was just a "fluke" w/the dockers, that of course does happen, but I still think Isotoner is a better choice. Actually I have another pair of Isotoners that I wear in the summer, and they have proven to be of good wear and showing no signs of stress. I wore them all last summer and they are in perfect shape!