I must've gotten over a dozen emails about this in the last two days so I'm just going to put it here so everybody knows. The following ad has been appearing on NHL web sites, promoting the NHL's online store. Look at it carefully.
That piece of clothing on the right is NOT a Calgary Flames' third jersey. It's not even a jersey. And the Flames won't have a third jersey this season at all. It's merely a hooded sweatshirt with a unique design.
You can purchase it at shop.nhl.com.