Project "Shell" is a modern approach to furniture design. The main principle is the multi-functionality of the sofa. It can change due to the flexible back. The traditional design of the sofa is transformed into a lounge sofa, double-sided sofa, or ottoman. The ability of transformation will generate a positive emotional response in children and adults. The color solution of the series is suitable for current interiors: white and gray version with accent gold pillows for interiors in the style of New Retro; and the dark gray version with bright red pillows for interiors in the style of minimalism.