The seats of the sofas are formed from two stacked cushions that have attached loop-like sections of cushion to make them look like giant versions of the Pillow Bags. These wrap around a white padded backrest.
The sofas are made from the same oil-coated cotton from Italian textile manufacturer Limonta as the bags, but instead utilise the company's fabric left over from fashion designs.
While the seats feature the same white, black and camel fabric colours as the bags, Muller Van Severen introduced the additional shades of green, navy and sky blue.
The Pillow Sofa is available in two different seating formats – a frontal and corner version. Its modular design means that users can keep the sofas as singular pieces, or can combine multiple seats together using the attached loop elements.
Kassl Editions was founded in 2018 as the joint venture of Graanmarkt 13 founders Tim Van Geloven and Ilse Cornelissens, fashion agent Bart Ramakers and colleague Charlotte Schreuder, and former Delvaux CEO Christian Salez.
Muller Van Severen's Pillow Sofa can be seen in the Graanmarkt 13 store in Antwerp from 18 September, and will also be showcased at the Salone del Mobile design fair in 2021.
It will also be on view from 18 to 22 September at Museum Voorlinden in the Netherlands, where Kassl Editions will be hosting a small exhibition.
The Belgian design duo previously created a furniture collection from aluminium pipes lined up in welded rows, called Alltubes, which included a chair, a bench and a variety of cabinets.
The studio also exhibited a selection of their designs in Villa Cavrois – a modernist 20th-century villa near Lille, France.