This is a Patagonia fleece for kids. It's a lightweight and soft fleece item. Labeled size: 4T According to the official Patagonia size chart: 4T/4 years old, weight 16-18kg, height 104cm Approximate Japanese size: 100 I purchased this new, but my child outgrew it without wearing it, so I'm selling it. It's an unused, beautiful item, but it doesn't have tags. It has been stored at home, so I would appreciate it if someone who understands this would purchase it.