These are Nike Koko sandals. The model number suggests they are women's, but they come in sizes that men can wear as well. I've used them for about two seasons, and the front part of the sole is worn down, but there are no noticeable stains or other damage. Size: 27cm Color: Black Brand: NIKE NIKE WMNS AIR MAX KOKO SANDAL Nike Air Max Koko Sandal CI8798 003 Nike NIKE Sandals Sports Koko KOKO COCO