This is a polo shirt purchased new from Paul Smith. My son outgrew it after about 10 wears, so the condition is as shown in the photos. As I am an amateur, there may be oversights, so please check the detailed condition in the photos before purchasing. Regarding the sizing, it is listed as up to 6 months, but it felt quite slim compared to Japanese brands. I have included a photo of my son wearing it at 5 months old, and by then, the hem was already a little small. Please use this as a reference. It looks very cute when worn with overalls or sweaters. The polo shirt fabric is sturdy and seemed comfortable to wear.