What type of foam is used in the sofas?

HR-foam has special comfort properties and advanced flexibility. As opposed to standard foam the structure of HR-foam is heterogeneous, the cells are of different size and differently react to the applied load. When the load is low only the small cells react, what matches the reaction of soft foam. As the load rises the bigger cells with higher resistance begin to work. This gives the marvelous comfort feeling and provides the correct anatomical body support.

Sitting down on a HR-foam seat one will not feel any extra hardness or fall-through effect and when the load increases the HR-foam will confidently take the body weight and evenly distribute it.