If you're after a thrifty option, this Flat Cap will fit the bill. It's a foolproof choice, while not very costly. In this price range, you can also consider this Betmar Flat Cap. It's an item you'll love which also doesn't cost the earth. You might also want to consider this Carhartt Flat Cap. The price is very reasonable, but the effect on your wardrobe will be pretty fantastic.
If you're looking for something in between pricewise, you're in luck with this Newsboy Cap in stock and waiting for you. You are guaranteed to love this product.