Shorts worn from around half a year ~ around 6 or 7 years old. When small, fold it back to make pumpkin pants style. As is, you can wear them as shorts or shorts, though there are individual differences, but you can wear them for a long time. The tuck design makes it perfect for proper use! Tuck shorts Total length: 31cm Inseam: 11cm Waistband Wrap 32cm and up It varies by individual, but it can be worn from about 1 year old to about 7 or 8 years old. Gray White Stripe 100% Cotton Black: 65% polyester, 35% cotton White 100% polyester Brown check, 100% cotton Model wearing Fsize model: 80cm boy(brown heck) 120cm girl (black) 96cm boy (brown check,gray white stripe) 90cm girl(gray white stripe) 97cm girl(broun check)