If you're a thrifty spender, look at this Leith Hat. It's a great piece for a good price. In this price range, you can also take a look at this Halogen Hat. It's also a popular item and won't break the bank. You might also want to consider this Asos Beanie. The price is very reasonable, but the effect on your wardrobe will be pretty fantastic.
If you're not the one to skimp on clothes, then you won't be disappointed if you check out this Beanie. It's a costly but smart option. Another product we're drooling over is this Beanie. It's pricey but you get what you pay for.