This is a thin long-sleeved T-shirt purchased from a Korean children's clothing store. The size is labeled as 100, but it felt like a 90 size when I dressed my child in it. The base color is white. The sleeves are charcoal gray, and there's a cute rabbit illustration in the center. I think the material is perfect for the beginning of autumn. It's still wearable, so I hope to sell it at a reasonable price. Please feel free to ask if you have any questions. aimoha 100% cotton