These super colorful and cute children's pajamas were purchased in the US. The set includes two short-sleeved shirts, a one-piece, a pair of shorts, and a pair of long pants. They are a slim fit. - US Size: 4T Equivalent to Japanese size 100-105cm. Made of 100% cotton, so they're gentle on the skin. They show some signs of wear, but are still in good condition. There are a few stains. Please check the photos. For those who understand that these are used items, thank you.