Collaboration Chair features elegant styling, active lumbar support and premium ComfortCore Gel seat construction. The exclusive technology provides exceptional support with lasting comfort and durability. The special relief core of seat cushion eases pressure behind your knees. Ultra-high resilience core delivers firmer support at the back to prevent sagging. Integrated memory foam conforms to your curves, allowing your body to relax and rejuvenate. Another part of the ComfortCore Gel is the gel-infused memory foam to give your body that extra support where you need it most. Cushioned seat and back are upholstered in durable, commercial-grade faux leather for a professional look. The fixed arms and base are made of durable aluminum. Executive chair also offers knee tilt seat place with four-position lock to enhance your comfort. Weight capacity is 300 lb.