Herman Miller Caper XR Black W/Black Frame Multipurpose Chair This chair is simple to assemble, the care and maintenance is a breeze, and features one-touch ergonomic adjustments Easy to clean Biomechanical knee-tilt mechanism eliminates pressure points on underside of thighs as chair reclines, promoting healthy circulation Breathable FLEXNET seat distributes weight evenly Flexible molded plastic back is contoured and aerated for support and comfort