I'm selling these because my child has outgrown them. They were used for about two months, once a week, for physical education class. They've been cleaned at a shoe cleaning service. They were used indoors, so there is almost no dirt on the soles and very little wear on the non-slip parts. They are light, breathable, and comfortable to wear. *Please refrain from purchasing if you are overly concerned about cleanliness or are a germaphobe.