Thank you for viewing. These are Japanese-made health sandals with bumps. They were in a bag, but I took them out for the photos. They are new and unused! The instep is laminate coated, so it's resistant to dirt. The insole is black, which doesn't show dirt easily, and the sole is white, so it won't leave marks on the floor. They can be used outdoors. ◇ Returns and exchanges are not accepted. I will answer any questions until you are satisfied. ♡ I will ship via Yu-packet Post. I will slightly compress them when posting. Please understand. We look forward to your purchase. Room shoes Indoor shoes Slippers Indoor Garden shoes Outdoor shoes Outdoor Kyoei