Expanding Fiber Chair's "design without eccentricity" ethos, Muuto adds a comfortably upholstered armchair with an office-friendly rolling swivel base. Copenhagen-based design duo Iskos-Berlin offer defining versatility in a reworking of the classic molded shell chair. But the designers adapt it to the current vernacular by shaping their version of shell seating in an inventive plastic and wood fiber hybrid with a matte finish and smooth touch.