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)
Youth Small (6-8) - Bright Yellow15.521
Youth Medium (10-12) - Bright Yellow1724
Youth Large (14-16) - Bright Yellow18.7525
Youth XL (18-20) - Bright Yellow1927
Youth Small (6-8) - Bright Yellow16.521.5
Youth Medium (10-12) - Bright Yellow17.523.5
Youth Large (14-16) - Bright Yellow1925
Youth XL (18-20) - Bright Yellow2026