Serta Smart Layers Blissfully AIR Technology Manager Office Chair, Black AIR Technology flexible and contoured lumbar zone, ergonomic adjustments and elevated headrest allows customized positioning to support the body and help improve posture Serta Smart Layers Premium Elite foam, individual pocketed ComfortCoils and deep layered body pillows provide a plush-like feel for luxurious comfort Hand-sculpted upholstered arms and soft bonded leather creates elegant style ideal for a professional office space 10-Year Limited Warranty