These aren't super comfortable, and they never feel like they're securely on my feet. They are also pretty flimsy for the money, just fabric and a thin rubber sole, with minimal padding under the foot. And how do I know what's inside the sole? Easy: The sole separated from the upper after about 6 weeks of wear around the house.<br /><br />Would not recommend to anyone who wears slippers more than a few minutes a day.