Thank you for viewing. This is a Montbell Lock-On Sandal, kids' size. * Color: Orange/Yellow * Size: M (19.0-20.0cm) I tried letting my child wear these once and go outside, but they seemed a bit tight due to a high instep, and they haven't been worn since, as my child outgrew them. I have cleaned and stored them carefully, but they are still used items worn by a child, so please refrain from purchasing if you are at all concerned. We do not have any pets or smokers in the household.