Size 70-80 Since they have different patterns, they are also recommended for twins! In our house, we dressed our twin boy and girl in them. I loved that the neckline didn't stretch easily, so I bought several extra, but I'm selling them to organize. These are cute long-sleeved T-shirts with a bear and a dog (?). The neckline opens wide with buttons, making them easy to put on and take off. I will fold them compactly and pack them.