Richie House Little Boys' Corduroy Pants with Elastic Waistband Rh2155 Size 2-10y 97% cotton 3% spandex A size 2/3 is for the average 2-3 year old girl, a size 5/6 is for the average 5-6 year old girl, a size 9/10 is for the average 9-10 year old,etc Soft and comfortable,addition of spandex makes for a unique texture and drapes softly against the body for a comfortable fit and feel Pull-up style with button at front placket,Leisure pants style for boys Its fashion design make your young boy to be a handsome view