If you're in a thrifty mode, this Zella Tank will fit the bill. It's a fail-safe choice, while not very pricey. Why not also consider this Under Armour Tank. It's a product you'll fall in love with which also doesn't cost the earth. You may also want to look at this Caroline Rose Tank. This item is not expensive either, but it will make a difference in your wardrobe.
For something in the middle of the price range, we've got your back with this Derek Lam Tank. This product is likely to become a total wardrobe staple. It's also worth looking at this Go Silk Tank. This item is ultra popular and, just as importantly, not very expensive. Check out this Caroline Rose Tank too! Great value for your money.