Herman Miller's patented Kinemat tilt mechanism lets your neck, shoulders, hips, knees, and ankles pivot naturally. Unique breathable Follicle suspension dissipates the body heat that builds up while you work, keeping you cool and comfortable, while providing unparalleled support The "waterfall" front edge of the seat takes the pressure off your thighs, so your blood keeps circulating, keeping you alert and focused The pioneering PostureFit mechanism supports the way your pelvis tilts naturally forward, so that your spine stays aligned and you avoid back pain Open Box Refurb 10 Year warranty and 30 day money back › See more product details