Executive leather high-back chair features exceptional quality visco-elastic memory foam in the seat cushion that reduces pressure points and responds to contours of the body for lasting comfort over extended-use periods. Functions include tilt, tilt tension, tilt lock, 360 degree swivel and pneumatic seat-height adjustment. Five-star base has 2" hooded dual-wheel casters. Certified by SCS to be in compliance with specific indoor air quality emission requirements. Meets or exceeds applicable ANSI/BIFMA standards.