Authenticity (KitLegit): https://app.kitlegit.com/check/4500. As per the photos, the internal seam labels (where Nike's product codes and wash instx etc are recorded) have been cut out on this shirt. We have carried out our authenticity checks and are confident this not to hide an 'unofficial' product. However, we felt it important to draw extra attention to this point, just in case it caught anyone out by surprise. For further reassurance, we will of course offer a 30-day no questions asked refund policy on this item, like on all of our other shirts.