Size 80, but stretchy, so I wore it until about size 90. I've worn it a few times, but I don't think there are any noticeable stains. Please refrain from purchasing if you are concerned, as this is a used item worn by a child. No name tags, no pets, no smoking. Bulk purchases are welcome! If you're a parent of twins and need a lot of clothes right away, please feel free to contact me.