Dynamic Lumbar Support, DLS, promotes and maintains ideal spine curvature. The lumbar self-adjusts to different posture states as you recline. Premium La-Z-Boy® Commercial ComfortCore® with Gel Memory foam seat construction for added comfort and heat dispersal. Upholstered in commercial grade black bonded leather. Aluminum arms with PU arm pads. Five-star aluminum base with casters for easy mobility. Cable actuated seat plate for seat height adjustment and tilt function.