ComfortCore® Plus with Memory Foam advanced layering system provides varying support for optimal comfort, stability and durability.,Memory foam layer conforms to deliver individualized support.,Poly-fiber top layer adds to overall plushness.,Softer support layer at front of seat cushion for flexible comfort.,Firmer support layer at back of seat cushion for stronger support.,Mid-layer seat cushioning adds stability and durability.,Top layer seat cushioning helps alleviate discomfort.,Plush pillowed body layers provide cushioning and pressure point relief.,Ergonomic seat-side controls allow for quick and easy height and tilt adjustment.,Contoured lumbar zone provides customized lower back support.,Some assembly required