It's my birthday Crystal shirt

this black shirt comes down to a v on your chest I'm it's short sleeve it's 100% cotton the brand is cotton heritage the back of the shirt is also has crystals on it it says 40 and fly with wings from pit to pit it measures 20 in I don't know if this is truly a 2X. it's my birthday is in the crystal color itself and then paint crystals and blue crystals the back is black crystals the regular crystals and then some metallic looking Crystal I would say it would fit a large . T#4