Engelbrechts of Copenhagen adds a version of its stackable Kevi 2060 with a molded plastic seat and backrest, with small surface holes for ventilation and a non-slip surface. Architect Jørgen Rasmussen's original contoured seating readily translates to the 4-legged version with steel tubing legs in polished chrome or powder-coated black. Otherwise, it's a double of his classic 1958 swivel chair, replete with the same supportive, comfortable contours.