Width is measured across the chest below the sleeves from seam to seam. Height is measured from the bottom of the shirt to the highest point on the shoulder (where the seam meets the neck).

Please note that each product has its own specific sizing chart.
SizeWidth (inches)Height (inches)
Junior Small - Navy Blue1624.5
Junior Medium - Navy Blue1625.5
Junior Large - Navy Blue17.526.5
Junior XL - Navy Blue18.528
Junior 2XL - Navy Blue1928.5
Junior Medium - Navy Blue
Junior Large - Navy Blue