If you're not planning on spending much, this John & Jenn Crew-Neck Pullover will fit the bill. It's a fail-safe choice, while not very expensive. In this price range, you can also consider this POL Crew-Neck Jumper. It's also a popular item and won't break the bank. You might also want to consider this Crew-Neck Jumper. The price is very reasonable, but the effect on your wardrobe will be pretty fantastic.