This is a set of 4 pairs of pants: 1 black pair from MUJI, 2 pairs from H&M (khaki and light blue), and 1 green pair with an Anpanman design from Bandai. The Anpanman pants are size 90, so they're a bit larger, but the fabric is light and airy, making them suitable for pajamas. ⑅◡̈* I don't see any stains, but these are used items that my child wore for one season, so I'd like to sell them to someone who understands that they are pre-owned!