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.

Size Width (inches) Height (inches) Adult Small - Red 17.5 27.5 Adult Medium - Red 19 28 Adult Large - Red 21 29 Adult XL - Red 23.5 30 Adult 2XL - Red 25.5 30.5 Adult 3XL - Red 27.5 32 Adult Small - Red Adult Medium - Red 19.5 28 Adult Large - Red 21.5 29.5 Adult XL - Red 23.5 30.5 Adult 2XL - Red 25 31.5 Adult 3XL - Red 27.5 33