It'll most likely be a knock off, few years ago my buddy said he could hook a bunch of us for cheap jerseys that he said were "authentic" and get them named and everything. I didn't buy one because I had a few jerseys already but a few of my friends did. When the jerseys came the Canuck Blue was a little shade and you could tell the logos were poor stitched on, this will most likely be the case with these jerseys too.
They wore the jerseys maybe 5 times and then I haven't seen them since haha.