Avio Sofa System is a modular sofa designed by Piero Lissoni for Knoll in 2016. Avio is available in a variety of combinations of modules which together can form both small and large seating groups. The sofa can also be equipped with a built-in side table. The frame is made of steel and is available in a variety of finishes. The cushions are upholstered with foam and polyester fiber, providing high comfort. The cushions are filled with down. The sofa cover is removable and available in a wide variety of fabrics and leather types. The Avio Sofa System has a modern design with stylish lines that fits into many types of homes.