If you're in a thrifty mode, we recommend checking out this Topman Turtleneck. It's a fantastic product for a good price. Another strong contender for your wardrobe is this Mauro Grifoni Turtleneck. While the price of this product is rather reasonable, it will certainly attract a lot of attention. You may also want to look at this Canali Rollneck. This item is not expensive either, but it will make a difference in your wardrobe.
If you want to splurge, then what you're looking for is this N.Peal Rollneck. It's more expensive but worth your money. Why not take a look at this Nude Rollneck too? Expensive, but worth every penny. In this price range, you can also take a look at this Prada Turtleneck. You won't regret the money spent!