Richie House Little Boys' Jeans with Elastic Waistband RH0691 100% Cotton A size, 3/4 is for the average, 3-4 year old kid, a size 4/5 is for the average 4-5 year old kid, a size 7/8 is for the average 7-8 year old kid, etc. Cotton classic denim pants, pull-up style with elastic waistband, easy to on and off Classic denim pants with split design, fashion, handsome and leading the trends SIZES FOR LITTLE AND BIG KIDS ARE BOTH AVAILABLE, PLEASE CHECK THE OTHER LISTING IN THE OTHER SIZE RANGE