My feet sweat no matter what I wear. Even in flip flops. Gross, I know, but it is what it is. So even with odor eaters, expensive probiotic sprays, and baking soda, they end up stinking like a skunk and a porta potty's love child.These slippers are MACHINE WASHABLE!Not to mention, they are the perfect fit and so soft.Con: Not enough support for my plantar fasciitis, but I'm not doing much walking when I'm lounging in these.See full review