After foot problems nearly all of my adult life I would say, like some OPs, that Skechers are the best shoes ever for comfort. They are so light too that they are brilliant for packing for your holidays.
I haven't put mine in a washing machine but I did wash them in a bucket with a capful of hand wash, rinsed then air dried them, and they were like new again.
I now have 3 pairs, one of them for in the house as I like the cushioning it gives me from my slate tiled kitchen floor.
When my grandson asked me yesterday why I always wear those shoes, I replied it's because they are the most comfortable shoes in the world!