The Soltis Harmony 88 fabric Kieselstein 45 018 in the color Grey allows the view to the outside. With an Opening factor of 8%, it offers the ideal compromise between sun protection and visual comfort. The Kieselstein fabric is compatible with the following STOBAG products: Side awnings, METRO, VISOMBRA, SURAVA, VERTICAL, UNIVERSAL, VENTOSOL, AIROMATIC.