These are pajamas, a set of three, purchased from the official website (size 55). They are thin, so I think they'll be useful during this time of year when you sleep with the air conditioning on. * Two of the three, excluding the polka dots, are unused, but there is a small hole on the back of the left leg of the striped pair. * The tag has been cut off the gray pair. * The polka dot pair has shrunk because it was washed and worn once. Please check the comparison image. Please see the last image for the size!