Richie House Girls' Sassy Poodle with Bow Top RH0264 95%cotton 5%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 Cotton lends both comfort and durability, addition of spandex makes for a unique texture and drapes softly against the body for a comfortable fit and feel Light and breezy cotton keeps this layered top comfy, and the poodle decoration is a sassy and sweet treat.