Vico Duo Side Chair - Sled Base - StackableStacking Capacity: 8 Chairs The Vico Duo chair comes in two different finishes: Natural veneer and black colored ash. All chairs are made of pressure molded sliced veneer. The shell is also available in front or fully upholstered versions in a wide range of textiles and leather types. Besides a base with four legs, it also comes with a sledge base, as a counter stool or as a bar stool.