first class. Seating Long-haul business-class seats are substantially different from economy-class seats, and many airlines have installed "lie-flat" seats into business class, whereas previously seats with such a recline were only available in international first class. There are essentially three types of long-haul business-class seats today. These are listed in ascending order of perceived "quality". Cradle/recliner seats are seats with around 150-160 degrees of recline and substantially more leg room compared to the economy section. The seat pitch of business-class seats range from (usually ), and the seat size of business-class seats range from (usually ). Although many airlines have upgraded their long-haul business-class cabins to angled lie-flat or fully flat seats, cradle/recliner seats are still common in business class on shorter routes. Angled lie-flat seats recline 170 degrees (or slightly less) to provide a flat sleeping surface, but are not parallel to the floor of the aircraft when reclined, making them less comfortable than a bed. Seat pitch typically ranges from , and seat width usually varies between . These seats first appeared on Northwest, Continental, JAL, Qantas and several other airlines in 2002 and 2003. Fully flat seats recline into a flat sleeping surface which is parallel to the floor. Many airlines offer such seats in international first class but retain inferior seating in business class to differentiate the two products and fares. British Airways, which introduced flat beds in first class in 1995, was among the first airlines to introduce fully flat business-class seats with its Club World product in 1999. Herringbone seating, in which seats are positioned at an angle to the direction of travel, is used in some widebody cabins to allow direct aisle access for each seat and to allow a large number of fully flat seats to occupy a small cabin space. The concept was first developed by Virgin Atlantic for its Upper Class cabin and has since been used by Delta, Cathay Pacific, Air Canada and other airlines. Cabin seat, These seats are designed to give the business-class traveler the most privacy they can attain while in flight. These seats are typically positioned in a 1–2–1 arrangement on a wide-body jet. On each side of the seat is a privacy panel about four feet in height. Aircraft such as these offer the best ergonomic comfort on long-haul business-class flights. These were first introduced on US Airways. Recaro claims its CL6710 business-class seat