These are lightweight, quick-drying waraji-style sandals made by wrapping a nylon core with yukata fabric and then braiding it. Although made from recycled fabric, they are new as sandals. The recommended size is around 24cm. To wash, hand wash and put in a net for spin-drying, or use a washing machine with a net on the delicate cycle. Please wash separately as there is a risk of color bleeding. If the thong becomes tight or loose after wearing for a long time, untie the thong on the underside and retie it. Please understand that these are handmade by an amateur and are not perfect. Please refrain from purchasing if you have a dog allergy.