If you can’t spend much, look at this Beanie. It's a popular piece for a reasonable price. Another strong contender for your wardrobe is this Knitted Hat. While the price of this product is competitive, it will certainly attract a lot of attention.
If you're looking for a bargain, you're in luck with this Maje Hat in stock and waiting for you. You are bound to love this piece.
If you're not a thrifty type, then you absolutely must check out this 3.1 Phillip Lim Hat. This item seems expensive, but it's top quality.