A basic tank is a wardrobe necessity. And because I hate wearing bras under tanks (too many straps!) I prefer a tank with a shelf bra. The problem is that a lot of shelf bras have elastic that's too thick, or the tank tops themselves are made of cotton that feels too heavy. So when I discovered these Shelf Bra Camis from Aéropostale, I grabbed up a bunch of them in different colors! The straps are thin, the bra elastic is light while still being supportive, and the cotton is soft. They're normally $10.50, which is a great price for a wardrobe staple that you'll wear a ton. But right now, they're on sale for $6, so even better!