if you're in a thrifty mood, this Mackage Trench Coat will fit the bill. It's a foolproof choice, while not very expensive. Another good option is this Mackage Trench. While the price is not very high, be sure that this product will become a worthy addition to your wardrobe.
If you're looking for something in between pricewise, look no further than this Carven Trenchcoat. This item doesn't cost too much, but absolutely invaluable in your wardrobe. You can also check out this Raquel Allegra Trench Coat. It's an attractive option both price and quality-wise. And do check out this A.P.C. Trench! It's a very popular item and good value for money.