American Apparel Tank Tops run SMALL ~ See below for exact measurements
Size Small ~ Armpit to Armpit ~ 16 1/2" ~ Rear Collar Seam to Bottom Hem ~ 24.25"
Size Medium ~ Armpit to Armpit ~ 18 1/4" ~ Rear Collar Seam to Bottom Hem ~ 25"
Size Large ~ Armpit to Armpit ~ 19" ~ Rear Collar Seam to Bottom Hem ~ 27 1/2"
Size XL ~ Armpit to Armpit ~ 21" ~ Rear Collar Seam to Bottom Hem ~ 28"