Ivivva tank with built-in bra

I have bundled this tank top with 3 others. I am open to taking offers for just this one too. Make an offer! Ivivva tank with shelf bra. Racer back tank with built-in bra. I cannot find a size, I'm calling it a medium but here's the measurements laid flat. 12 inches across the bra, from the shoulder to the hem 23 inches at the longest and the sides are 14 inches from the bra to the hem...