This biker's leather vest has a large brass zipper, two front patch pockets, and an extended draft flap on the back. The arm holes were made slightly large to accomodate it being worn over a jacket. It's made with moccasin cowhide that is a bit thicker than most vests are made with.
Below is the back view of this bikers vest. Notice the extended (about 3") draft flap. The picture is linked to a larger image.