If you're a thrifty shopper, your best bet is this Canada Goose Hat. It's a great product, while not very costly. You might also be interested in this Federica Moretti Beanie. It's a product you'll fall in love with which also doesn't cost the earth. You may also want to look at this Twin-Set 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, opt for this Vince Beanie Hat. While the price is very reasonable, this piece is an easy wardrobe update. It's also worth taking a look at this Rag and Bone Beanie. This product is extremely popular and, just as importantly, not too pricey. Alternatively, opting for this MM6 MAISON MARGIELA Hat is a good choice as well!
If you have enough to afford it, then you won't be disappointed if you check out this Inverni Hat. It's a costly but smart option. Another product we're drooling over is this Rosetta Getty Beanie. It's costly but you get what you pay for. It is also worth checking out this Hat. You won't regret the money spent!