If you'd rather not spend much, this adidas Beanie will fit the bill. It's a great choice, while not very pricey. In this price range, you can also consider this Topman Knitted Hat. It's also a popular item and won't break the bank. Or you can choose this '47 Beanie - be sure you'll be making a stylish addition to your wardrobe.
If you're willing to splurge, consider purchasing this Gucci Beanie - a great luxury choice. While you're at it, also have a look at this Thom Browne 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 Loro Piana Beanie Hat. 'Cause you deserve nothing but all the finer things!