Two-piece set: top and bottom. Worn 2-3 times, and my child has outgrown them. There are some fold wrinkles from storage, but there appear to be no noticeable stains. If you understand that these items have been used by an infant, please consider purchasing them. The size is 12-18 months, so I'm borrowing the 80 tag. I think these are perfect for the coming season. I'm also selling another set of the exact same item. Great for twins too!