If you're on a thrifty mission, this Asos Tank will fit the bill. It's a foolproof choice, while not very pricey. In this price range, you can also check out this Urban Outfitters Tank. It's also a popular item and won't break the bank. You may also want to look at this Prana Tank. This item is not expensive either, but it will make a difference in your wardrobe.
If you want to treat yourself, then you absolutely must check out this Theory Tank. This piece seems pricey, but it's top quality. Why not take a look at this St. John Tank too? Expensive, but worth every penny. And one more item you might be interested in is this Sportmax Tank. 'Cause you deserve nothing but all the finer things!