If you're budget-restricted, you'll appreciate this H&M Tank. It's a fail-safe choice and a good investment. Another strong contender for your wardrobe is this Express Tank. While the price of this piece is not very high, it will certainly attract a lot of attention. You might also want to consider this Max Studio Tank. The price is very reasonable, but the effect on your wardrobe will be pretty fantastic.
If you want to splurge, then you won't be disappointed if you check out this Dolce & Gabbana Tank. It's an expensive but smart option. Another product we're drooling over is this Carine Gilson Tank. It's expensive but you get what you pay for.