Sculpted, molded back with integral lumbar support Lumbar feature supports your lower back and enhances the natural curve of your spine. Waterfall seat front provides comfortable under-thigh support. Waterfall seat cushion slopes slightly downward to help reduce stress on your legs. 1-touch seat-height adjustment, adjustable back height, seat-depth adjustment and 360degrees swivel. 5-star base has 2in. hooded dual-wheel casters for easy chair movement. Greener choice - contains 45% postconsumer recycled content. SCS Indoor Advantage Certified for healthier indoor air quality. Manufactured with reduced harsh chemicals and processes that are "low VOC" (low in Volatile Organic Compounds).