If you're a thrifty shopper, why not consider this Missguided Beanie. It's a fantastic product for a good price. Another strong contender for your wardrobe is this Asos Beanie Hat. While the price of this item is rather reasonable, it will definitely attract a lot of attention. You might also want to consider this Asos Knitted Hat. The price is very reasonable, but the effect on your wardrobe will be pretty fantastic.
If you're looking for something in between pricewise, look no further than this No.21 Knitted Hat. This item doesn't cost the earth, but absolutely indispensable in your wardrobe.
If you're willing to splurge, opt for this Ermanno Scervino Hat - a great luxury choice. While you're at it, also have a look at this Gucci Hat. Yes, this item is expensive, but it does not mean it's not worth it. And one more item you might be interested in is this Jennifer Behr Knitted Hat. 'Cause you deserve nothing but all the finer things!