Creative design built using light materials for exceptional comfort. Equipped with a unique cantilevered seat, the Pilot Swivel High Back Lounge, Loop Arms by Knoll appears to be floating in the air. The four-star base swivels 360-degrees and is made of highly durable die-cast aluminum. Highly resilient polyurethane molded foam overlaid with knit backed polyester fiber in the seat provides long-lasting comfort. Topstitching with open parallel double side seaming in the upholstery lends a timeless look. The seat substructure offers greater flexibility and is made of steel, die-cast aluminum and elastic webbing embedded inside polyurethane molded foam.