Shell Dining Chair with a soft leather upholstery designed by Michael Dreeben. The collaboration with the most recognised Danish leather supplier, Sorensen Leathers, is bringing a new softness and tactility to the Mater collection. Ultra (previously known as Tango) is a pigmented leather, suitable for everyday use, that is durable, easy to maintain and resists stains. A layer of foam is making the seating of the chair a more comfortable and soft experience.