If you are on a limited budget, this Plush Beanie will fit the bill. It's a great choice, while not very costly. It is also worth checking out this Beanie. It's a product you're bound to love which also doesn't cost the earth. You may also want to look at this Hat Attack Beret. This item is not expensive either, but it will make a difference in your wardrobe.
If you're looking for a happy medium, look no further than this White + Warren Beret. This item doesn't cost too much, but absolutely invaluable in your wardrobe. Also check out this Rag & Bone Hat. It's an attractive option both price and quality-wise. And do check out this Rag and Bone Hat! It's a very popular item and good value for money.
If you're gonna splurge, then you absolutely must check out this Eugenia Kim Beanie Hat. This piece seems expensive, but it's worth it.