If you'd rather not spend much, your best bet is this Dondup Hat. It's a terrific piece, while not very pricey. You can also consider this Woolrich Hat. It's an item you'll love which also doesn't cost too much. You may also want to look at this Club Monaco Hat. This item is not expensive either, but it will make a difference in your wardrobe.
If you're not a thrifty type, why not look at this Maison Michel Hat - a great luxury choice. Why not take a look at this Gucci Hat too? Expensive, but worth every penny. And one more item you might be interested in is this Etro Hat. 'Cause you deserve nothing but all the finer things!