It's quite slim, so I'd say it's a size 50-60. It was quickly outgrown, so it's probably in good condition. Please only consider if you're not too concerned about minor details. AI Information: Striped Romper, H&M - Brand: H&M - Size: EUR 68 / US 4-6M - Design: Striped pattern, with a bow tie - Colors: White and Navy Thank you for looking.