If you are on a budget, this Brixton Hat will fit the bill. It's a popular choice, while not very expensive. It is also worth taking a look at this Hat. It's a product you'll love which also doesn't cost the earth. You may also want to look at this Urban Outfitters Hat. This item is not expensive either, but it will make a difference in your wardrobe.
For something in the middle of the price range, we've got your back with this Goorin Bros. Hat. This product is likely to become a total wardrobe staple.