A best bet is the Columbia Sportswear Women's Harlow Parka in Black (pictured) or Brown for $137.95 before the below coupon, $103.46 after. With $12.95 for shipping, that's $244 off list and the lowest total price we could find. It comes in sizes S to XL, although not all size/color combinations may be available.
Update: Even better, use coupon code "ALJAN2" to get 25% off orders of $125 or more, or 30% off orders of $150 or more. (The codes do not stack.) The above best bet's price has been updated with this code.