These Vionic slippers are very warm so stayed in the box until the cold weather set in. I put them on for the first time and the faux fur color rubbed into my legs. Then my feet made a mess on the carpet and shower mat. I've tried a strong shower mat cleaner but it won't remove the black paint from an off-white shower mat. No luck on the carpet either. My feet sweat, but most people sweat in these warm slippers. That complaint aside, they fit well and keep my feet warm.