The master glazier, Louis Barillet, developed a new artistic language with stained glass and was asked to decorate the Molitor swimming baths and the hotels of rue Mallet-Stevens. He introduced geometric patterns inspired by both Art Deco and the Modern Architectural movement. Barillet assembled striated and diamond-shaped glass and incorporated coloured glass opals, bringing the stained glass to life with these contrasting materials. Barillet is directly inspired by this artistic approach. The design combines geometry with soft lines and texture. In part composed of fibres of recycled polyester, it features elegant colour combinations, lifted by iridescent inks.