By black diamond. Size US 3. For reference, My daughter was wearing size C13 native jefferson shoes at the moment we purchased these climbing shoes. She grew out of these quickly, we only used for less than 5 times. Inner edges has minor worn, outer edges are still perfectly sharp(please see photos). My daughter always wears socks when climbing, so the shoes was never washed. I still kept the original box, let me know if you need it.