Thank you for viewing! I wore these for one season two years ago. There are no noticeable stains, and they are still wearable, so I would be happy if someone could wear them. Both sizes are indicated as 6-12 months on the collar, but the plain one has 12-18 months written on the inner tag. They are the same size as the checked one, so I think 6-12 months is correct. They feel like a size 70 (cm) when worn! [Items] Gap GAP baby romper short sleeve boy 70 size 2-piece set Sleeve Length...Long Sleeve Sleeve Length...Short Sleeve Design...Plain