Of course the official disclaimer belongs here....
ARC'TERYX can only guarantee the authenticity of ARC’TERYX products when purchased through an authorized dealer and/or distributor.
But looking at the pictures
I would have to say that it is a fake. The Alpha SV would have bellows on the front pocket, and I can't see them there. The pictures are not of the best quality, so it is hard to be certain.
Redskins38 - I would say that the jacket that you are looking at is one of ours. If the pictures match the jacket, it is a real ARC'TERYX piece.
We do look through eBay regularly, and shut down any sales that are counterfeit. We don't shut down the user, but just end the sale of the item, there are only a few of us who do it, and there are pieces that we miss. Some like the one that Telski posted are hard to judge, and we have internal debates about the jacket. This one we think it is a fake but not 100% positive. We would have to see a better photo. But we have seen fake Alpha SV's with black zippers before. (We have one here at the moment) Counterfeit jackets are becoming more and more of an issue for us and we are trying to deal with them... but there are lots of issues.
A couple of things that I can tell you is that we do not sell any old stock to anyone who is not a dealer. If you can't find them listed on our website, they are not authorized to sell our product. The only place to buy seconds is out of our factory outlet that is in North Vancouver. We never sell these to stores, and there is no warranty on these items, and we can tell if the garment is a second or not.
I hope that helps a little.
Thank you to OldSchool for letting us know that this thread was here!