If you are on a limited budget, your best bet is this PrettyLittleThing Cover-up. It's a wonderful product, while not very costly. Another strong contender for your wardrobe is this Asos Cover-up. While the price of this item is not too high, it will surely attract a lot of attention. You may also want to look at this Seafolly Cover-up. This item is not expensive either, but it will make a difference in your wardrobe.
If you're looking for a good deal, why not consider this Chaser Bikini Top. While the price is very reasonable, this item is an easy wardrobe update. It's also worth taking a look at this Seafolly Bikini Top. This piece is extremely popular and, just as importantly, not very expensive. Take a look at this Rip Curl Bikini Top too! Great value for your money.