This executive chair has a contour seat and back with built in lumbar support and pneumatic seat height adjustment. It features dark brown bonded leather and matching upholstered armrests. It also has a butterfly seat plate with a memory foam cushion and a durable 5 star chocolate finished base. Contour seat and back with built in lumbar supportPneumatic seat height adjustmentSupple dark brown bonded leather with matching upholstered armrestsWaterfall seat edge provides enhanced leg circulationButterfly seat plate Manufacturer: Z Line Designs; Model: ZL5010 01ECU; MPN: ZL5010 01ECU; Part Number: ZL5010 01ECU; UPC: 846158005029; Color: Dark Brown; Brand: Z Line Designs; Department: ; Size: High Back; Warranty: ; Label: Z Line Designs;