The size isn't indicated on the tag at the back of the neck, but I believe it's approximately 160cm. Also, there is a name written on the back of the tag. Regarding stains, there are two that are somewhat noticeable. I think there are no other noticeable ones, but since it's a used item, please refrain from purchasing if you are concerned about minor details. There may be oversights. Please purchase only if you understand this beforehand. Adidas Cut and Sewn Long Sleeve T-shirt