A friend of mine purchased this backpack quite a while ago from a very reputable retailer who verified it was authentic.  The dimensions are approximately as follows - Height: 9.4", Width: 8.2" and Depth: 3.9".  The Handle drop: 7.5 and Shoulder Straps: 27.5 and 30.7.  It has an outside zippered pocket.  Date tag: SP0061.  See photos.