If you're on a thrifty mission, your best bet is this O'Neill Tank. It's a wonderful piece, while not very expensive. Also look at this Cabernet Tank. It's an item you'll love which also doesn't cost too much. Or you can opt for this GB Tank. This item has all the potential to become a powerful player in your wardrobe.
If you're a bargain hunter, opt for this Daniel Cremieux Tank. While the price is very reasonable, this piece is an easy wardrobe update. It's also worth considering this Karen Kane Tank. This item is extremely popular and, just as importantly, not too pricey. Alternatively, opting for this Tank is a nice choice as well!