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)
Adult Small - Charcoal17.527
Adult Medium - Charcoal19.527.5
Adult Large - Black21.529.5
Adult Large - Charcoal21.528.5
Adult XL - Black23.530.5
Adult XL - Charcoal2330
Adult 2XL - Black2531.5
Adult 2XL - Charcoal25.532
Adult 3XL - Black25.532.5
Adult 3XL - Charcoal26.533
Adult 4XL - Black2934.5
Adult 5XL - Black32.535
Adult 6XL - Black3336
Adult 7XL - Black3737.5
Adult 1XLT - Black2432
Adult 2XLT - Black2735.5
Adult 3XLT - Black27.534
Adult 4XLT - Black29.535
Adult 5XLT - Black3236
Adult 6XLT - Black3439