Executive high-back chair offers exceptional quality visco-elastic memory foam in the seat cushion, which reduces pressure points and responds to body contours for lasting comfort. Functions include 360-degree swivel, tilt, tilt tension, tilt lock and pneumatic seat-height adjustment. High-back chair also offers a fully upholstered outer back and five-star base for stability. Chair is available in black frame only. It is certified by SCS to be in compliance with specific, indoor, air-quality emission requirements. It also meets or exceeds applicable ANSI/BIFMA standards.