I ordered these for my self a few years ago, and recently for my friends. They are free, you only have to pay shipping. The quality is great!
There are also two sister websites that sell Nursing covers and Carseat covers also for free with different discount codes. Look below!!
Uddercovers.com use the code X3XFQRUC for a free nursing cover just pay shipping!
Carseatcanopy.com use the code Z6BAHSCC for a free Carseat cover just pay shipping!