This is a set of 5 Thomas the Tank Engine t-shirts. Shirts 1-3: Size 110, but they run small, so they would fit a child who usually wears sizes 90-100. Shirt 2: Size A4, which is equivalent to a size 90-100. Shirt 3: Uniqlo size 90 t-shirt. It might be a little big. Overall, these shirts would be a good fit for someone who wears sizes 90-100. They were well-loved and show signs of wear, but there are no noticeable stains. Please understand that these are used clothes before purchasing.