Grey Beanies from Bergdorf Goodman
If you're looking for an item in the middle of the price range, take a look at this Sofia Cashmere Beanie Hat. While the price is very reasonable, this piece is an easy wardrobe update. You might also want to consider this Sofia Cashmere Knitted Hat. It's an attractive option both price and quality-wise.
If you want to splurge, then what you're looking for is this Beanie. It's more expensive but worth your money. Why not take a look at this Knitted Hat too? Expensive, but worth every penny.