This shirt is SO cute! Its silky and looks exactly like the picture, but even prettier and shiner in person. It is a little bit smaller though, so you want to size up! My girl is turning 6 this month and she wears size 7, and we got this in a size 8, and it fits her perfectly. Its not long at all either, so if your kid is tall, this could be a bit shorter than it looks on my kid, but also, it gets a little longer the more you size up so idk. My kid is 5 so she doesnt need an undershirt with this, its not really see through for her, but it shows the child model has an under shirt on. Its also not very stretchy, if at all. If you size up, this is perfect and I 100% recommend! Its so adorable.