If you are on a tight budget, this Diesel Hat will fit the bill. It's a popular choice, while not very pricey. Another strong contender for your wardrobe is this Sperry Knitted Hat. While the price of this piece is not very high, it will definitely attract a lot of attention. You may also want to look at this J.Crew Knitted Hat. This item is not expensive either, but it will make a difference in your wardrobe.
If you're looking for a good deal, look no further than this Timberland Knitted Hat. This item doesn't cost too much, but definitely deserves a place in your wardrobe.