Most comfortable sneaker I have ever worn.  Shortest lifespan ever.  The memory foam lasts well beyond the tops and soles (which last less than a year.)  Soles on first pair got hard and separated, top had a hole; second pair the soles lasted fine, but in less than a year the tops peeled and separated to make a hole.  Still, bought a third pair.  This would be a five star sneaker if it lasted at least a year.