if you're in a thrifty mood, this Forever 21 Tank will fit the bill. It's a great choice, while not very pricey. Another great option is this Tank. While the price is competitive, be sure that this piece will become a worthy addition to your wardrobe. You may also want to look at this Chaser Tank. This item is not expensive either, but it will make a difference in your wardrobe.
If you're looking to purchase a designer item, then what you're looking for is this Marni Tank. It's more expensive but worth your money. Another product we're drooling over is this Courreges Tank. It's expensive but you get what you pay for.