Found in first and business class cabins, herringbone or reverse herringbone seating describes how the seats are arranged. As the name would suggest, these seats are laid out in a distinctive weaved shape like a broken zigzag. The seating arrangement is called herringbone because it resembles the skeleton of a herring fish. Over the past 30 years, first and business-class seating has gone from having a wider reclining seat with extra legroom to one that becomes a lie-flat bed at the push of a button.