Based on Garment Measurements |  Unit of Measure is " Inches "
Size  Chest  Length
7-8 Years 21 26


1- Select garment you already have and fits you, Lay it straight and perform the following measurements.

2- Chest : Measure the chest right 1 inch
below from the arm pit (circumference) 

3- Length : Measure the length from highest point of the shoulder to the bottom