This is an authentic Levi's "Big E" trucker jacket. The same one you would have worn back in the 60's or early 70's, at the side of the road with your thumb outstretched, at Altamont waiting for darkness to descend and for the Stones to take the stage, or in the back seat of your best friend's car skipping school and sipping at a warm budweiser tall boy can.
This particular Big E jacket has an awesome worn-out patina to it and has the letters "g" and "d" stitched onto the left chest pocket. We're not sure if this was the original owner's initials or what. The size is marked a 40 (circa 1960's), but in modern terms it is approximately a smallish medium.