If you're a frugal shopper, you'll appreciate this Helmut Lang Blouse. It's a fail-safe choice and a great investment. Another strong contender for your wardrobe is this Helmut Lang Jacket. While the price of this piece is not very high, it will surely attract a lot of attention.
If you have enough to afford it, then what you're looking for is this Helmut Lang Tank. It's more expensive but worth your money. While you're at it, also have a look at this Helmut Lang V-Neck Pullover. Yes, this item is expensive, but it does not mean it's not worth it.