Apron out of jeans. looks to be one piece using the whole leg split at the center front or center back. leg style or shape would play a part in the final shape of the apron. wide leg or flare jeans would make a fuller apron I imagine
Turn Your Old Shirt into a Fancy Looking Apron - DIY
Vermont Apron Company 077 - showing apron pinned in place, bias cut, pleats held by end of waist tie sewn over the pleats. Gathered pockets are just pinned in place here but sewn down on finished apron.