At Salone del Mobile 2018, COS unveiled Open Sky, a large-scale outdoor installation placed in the courtyard of Palazzo Isimbardi by Phillip K. Smith III, that was inspired by the sky and the architecture of Milan. In the garden of the venue were smaller works by the artist as well as a coffee pop-up serving complimentary drinks to guests. The installation was open to the public for 7 days and was attended by 22,000 visitors. During the period of exhibition, 2 separate press events were hosted as well as 3 full days of media interviews which took place within the serviced media suite located on-site.