Sustainability, functionality and esthetics – this was the development target. Due to the internationally patented production process, each stone shows a unique grain and reminds of a sawn natural stone. Contrary to natural stone, this concrete block is highly ecological yet: no predatory cultivation at nature by breaking large stone blocks as well as a more positive ecological balance. And with regard to the cleaning Umbriano is superior to natural stone: by the “CleanTop technology” it is permanently protected against soiling. The grain in combination with the unchamfered edges lends this paving system an elegant, natural character.