The Stressless Mayfair Office chair is built with perforated foam molded directly over the frame. The indentations in our new Comfort-Zones™ technology allows your body to sink deeper into the seat, giving you an enhanced feeling of personal comfort. An additional pad of soft space-age foam ensures optimum comfort. The super-soft polyester fiber cushions your body and ensures an attractive look. The unique Stressless® Glide system automatically adjusts to your body weight. The chair can easily and smoothly be height-adjusted by using the handle under the seat. The base with wheels is carefully developed and designed to give optimal stability and the freedom of 360 movement. The Plus™ system provides continuous support for your head and lower back. The internal contruction features a double-sided mechanism to ensure maximum stability and functionality. The durable steel frame and flexo springs provide for superior resilience and continuous support. Stressless chairs are built to last, and that's why we guarantee the internal mechanism for 10 years. We cover our chairs with genuine top-grain leather or top-quality fabric for a luxurious look and feel.