If you're looking for an affordable item, your best bet is this Knitted Hat. It's a terrific item, while not very costly. Another strong contender for your wardrobe is this Twin-Set Knitted Hat. While the price of this piece is not too high, it will surely attract a lot of attention. You might also want to consider this Collection XIIX Hat. The price is very reasonable, but the effect on your wardrobe will be pretty fantastic.
If you can afford to spend a little more, consider choosing this Andrea Crews Beanie Hat. While the price is very reasonable, this item is an easy wardrobe update. In this price range, you can also consider this Rebecca Minkoff Hat. It's an attractive option both price and quality-wise.