Other then that cool slippers, light and easy to wash. still no problem nor irritation. Until we found Zymox (also the earlier blue version with cortisone), we had to have the dog sedated at the vet for regular ear cleanings. The wires are not the thickest but they are doing a good job holding those spices. Other than that, it ruined my real hair brushes. Quality wise - not the sturdiest I would expect. Maybe thats the mystery. It just threw a nasty time out and error message. I have flat feet and needed a sandal with arch support and these work great. I do have narrow feet, and ordered my usual size.