They are advertised as real and have the traditional Chicago Blackhawks logo. They claim to be the Chicago Blackhawks "Breast Cancer Awareness Jersey." After searching the Breast Cancer Research and Awareness Apparel website, as well as the official NHL apparel retail shop, I could not find this jersey anywhere. I am assuming not only is it fake, but that the owner is not donating to the cause, either.
Each one of the buyer's shops on Etsy and Ebay have several jersey styles.

Here are the