If you're looking for an affordable item, this Beanie will fit the bill. It's a fail-safe choice, while not very expensive. Another strong contender for your wardrobe is this Bloomingdale's Knitted Hat. While the price of this piece is rather reasonable, it will certainly attract a lot of attention.
If you have enough to afford it, then what you're looking for is this Moncler Beanie. It's more expensive but worth your money.