Heel slip-resistant processing (GETTA GRIP technology) Oil-resistant and chemical-resistant soles. The leather on the inside is peeling due to storage, but it does not affect use. I bought these for my child to walk in the snow, but they were only tried on. There is no original box. The size is UK 5, which is approximately 23 or 23.5 in Japanese size. These can also be used as Western boots. Thank you.