These rubber sandals can be worn even on rainy days! I've only worn them once, but there is some black staining. They can still be worn. Size 36 23.5 cm Please refrain from purchasing if you are looking for a pristine product or are concerned about stains from storage and use. Also, as I am an amateur inspector, there may be overlooked stains or scratches that are not shown in the photos. Please purchase only if you understand this. To prevent any problems, please check the condition carefully and purchase only if you understand that this is a used item. No cancellations or returns, please.