Leather high-back chair supports up to 450 lb. with normal use in comfort. Integrated headrest & lumbar support provide exceptional comfort. Chair also features SofThread Leather, fixed padded loop arms & five-star base with smooth-rolling casters. Functions include pneumatic seat-height adjustment, 360-degree swivel, tilt, tilt lock & posture mechanism / lock. Seat measures 22-5/8" wide x 23-3/4" deep while back size is 22-5/8" wide x 45-1/4" to 48" high. Usable seat depth is 23-1/2" deep.