If you're a budget-conscious shopper, your best bet is this Alice + Olivia Coat. It's a great product, while not very pricey. Another strong contender for your wardrobe is this BOSS Sleeveless Coat. While the price of this item is competitive, it will surely attract a lot of attention.
If you're looking for something in between pricewise, you're in luck with this Helmut Lang Coat in stock and waiting for you. You are guaranteed to love this product. It's also worth taking a look at this Maison Margiela Sleeveless Coat. This piece is extremely popular and, just as importantly, not too pricey. And do check out this Peserico Coat! It's a very popular item and good value for money.