I only used these for one season, and they are in good condition with no noticeable stains. I think they can still be worn. How about using them as spare clothes for daycare? I'm decluttering, so I'm only selling them as a set of 9. Regarding the folding wrinkles, I apologize, but they should come out after washing, so please understand. *The red dinosaur T-shirt in the third photo is 100cm, but it runs small, so I'm selling it as a 95cm size. Thank you.