These are Nike slip-on sneakers for kids. They have a cool psychedelic design with a geometric pattern. They're in great condition, having only been worn a few times, likely because the size wasn't right. However, the size marking on the inside is fading, so the exact size is unclear. The outer length is about 15cm. They were about the same size as the New Balance sneakers (14cm) I'm selling at the same time, so I'm listing them as size 14-14.5cm.