If you're a thrifty spender, this UGG Raincoat will fit the bill. It's a popular choice, while not very expensive. Another smart option is this Cutter & Buck Waistcoat. While the price is rather reasonable, be sure that this item will become a valuable addition to your wardrobe. You may also want to look at this Schott NYC Puffer Coat. This item is not expensive either, but it will make a difference in your wardrobe.
If you can afford to spend a little more, consider buying this Ted Baker Waistcoat. While the price is very reasonable, this piece is an easy wardrobe update. It's also worth looking at this David Donahue Waistcoat. This product is extremely popular and, just as importantly, not too pricey. Alternatively, opting for this Duffel Coat is a savvy choice as well!