If you don’t want to splurge, your best bet is this Nordstrom Shell Top. It's a great item, while not very costly. Another strong contender for your wardrobe is this Madewell Sleeveless Top. While the price of this item is not very high, it will certainly attract a lot of attention. You may also want to look at this Reiss Sleeveless Top. This item is not expensive either, but it will make a difference in your wardrobe.