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)
Juvenile 4 - Sky Blue13.518
Juvenile 5-6 - Sky Blue14.519
Juvenile 7 - Sky Blue15.520
Toddler 2T - Sky Blue1215
Toddler 3T - Sky Blue12.515.5
Toddler 4T - Sky Blue1417