It says "M," but my child wore this when they were around 150-160cm tall. My child wore these for school and extracurricular activities, and I'm selling many items that they've outgrown. They were worn for everyday use, so there may be some wear and tear, such as fraying, stretched necklines, loose elastic, fading, and names written on the tags. Many of the items are from brands like Adidas, Umbro, Nike, and Puma, and are made of sturdy fabric. I hope that those who understand that these are used items will consider purchasing them. Please check the photos, and feel free to ask any questions. They can still be worn, so I hope someone will use them for everyday wear or as spares♡