Of course! I'm actually considering getting another one because of the price and how much I like it. It does take 2-3 weeks for delivery since it's coming from China, but nothing terrible (I ordered mine on Sept 15 and got it on Sept 28).
I currently use mine soley as an undershirt, because the hook-and-eye closure on the side shows a little bit through the fabric near my armpit, but I think that's mostly due to my size. Since you're already an A, I bet you wouldn't have that problem, especially if you got the black one. Other than that, it really does look just like any other tank top. I'll probably just wear it as is when the summer roles around again and it starts to get hot.