Handmade by a 94-year-old grandpa! Size: 23-24 cm Width: 10 cm The white parts are made of silk fabric. They are quite tightly bound, so I don't think they will unravel. I think they can be washed in a washing machine. Please wash them in a laundry net just in case. However, since they are handmade, please understand that there may be differences between the left and right, and seams in the fabric. Made with lots of love! #Zori #ClothZori #ClothSandals #RoomShoes #HouseSlippers #IndoorShoes #Slippers #Summer #Handmade #Handmade