If you're in a thrifty mode, this LuLu*s Turtleneck will fit the bill. It's a great choice, while not very pricey. You can also look at this Rollneck. 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 Glamorous Turtleneck. This item is not expensive either, but it will make a difference in your wardrobe.