ZYIA size L/XL? *Read* Black Stretch Workout Sleeveless Tank Top Sheer V B23

ZYIA Black Stretch Workout Sleeveless Tank Top Sheer V in front and strip down the back- see photos. The size says XXXL, however that does not seem right to me. I am not familiar with this brand but it seems way too small to be a 3XL. I think it would probably fit more like a L/XL? Armpit-armpit measures approx 18.5 inches across.- SEE PHOTO PLEASE MAKE SURE this size works for you It is in VERY GOOD pre-owned condition