If you're after a bargain, take a look at this Jennifer Behr Beanie. While the price is very reasonable, this piece is an easy wardrobe update. You can also consider this Eugenia Kim Hat. It's an attractive option both price and quality-wise. And do check out this Hat! It's a very popular item and good value for money.
If you have enough to afford it, look at this Loro Piana Beanie Hat - a great luxury choice. While you're at it, also have a look at this Jennifer Behr Beanie. 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 Moncler Beanie. 'Cause you deserve nothing but all the finer things!