Size Tolerance: ±½ inch on length & width.
Shrinkage Tolerance: ±5% on length & width.
To determine your size, get a shirt that fits you comfortably. Lay it down on a flat surface like a bed or table and measure the width of the shirt just below the sleeves. Look up the width in the size tables above to find your equivalent size. If your measurement is in between two sizes, choose the bigger size to ensure a better fit.