If you are on a budget, your best bet is this Puma Cap. It's a great item, while not very costly. Another strong contender for your wardrobe is this Puma Baseball Cap. While the price of this product is rather reasonable, it will definitely attract a lot of attention.
If you're looking for something in between pricewise, opt for this Puma Cap. While the price is very reasonable, this product is an easy wardrobe update.