If you're a thrifty spender, this O'Neill Bikini Top will fit the bill. It's a popular choice, while not very expensive. Another strong contender for your wardrobe is this Rachel Roy Bikini Top. While the price of this item is not too high, it will certainly attract a lot of attention. You may also want to look at this Vince Camuto Bikini Top. This item is not expensive either, but it will make a difference in your wardrobe.
If you're after a bargain, why not look at this Becca Bikini Top. While the price is very reasonable, this product is an easy wardrobe update.