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 - Bright Yellow 18 27 Adult Medium - Bright Yellow 20 28.5 Adult Large - Bright Yellow 21 29 Adult XL - Bright Yellow 22 30 Adult 2XL - Bright Yellow 25.5 31.5 Adult Small - Bright Yellow 18 27 Adult Medium - Bright Yellow 20 28.5 Adult Large - Bright Yellow 21 29 Adult XL - Bright Yellow 22 30 Adult 2XL - Bright Yellow 25 31.5 Adult Small - Bright Yellow 18 27 Adult 2XL - Bright Yellow