Get the fit right
Blank apparel size guide.
Measurements vary by style. Use the product specifications first, then compare to a garment you already like.
How to measure
Lay a similar garment flat. Measure chest one inch below the armhole, then measure body length from the high point of the shoulder.
Between sizes?
Choose the larger size for a relaxed fit or the smaller size for a closer fit. Garment-dyed cotton may vary slightly.