The new carpet concept is based on a four-layered structure. The top layer is an overlay of bielastic knitted fabric with a soft, long-pile texture. Below this is a viscoelastic PU layer and, underneath that, a rebonded foam made from recycled PU material. The bottom layer in contact with the floor is a thin reinforcing fabric that stabilises the entire structure and protects the less tear-resistant layers above against tensile forces, for example when laying the carpet. The two PU foam layers have very different hardnesses. The viscoelastic PU layer is very soft, initially allowing the foot to sink in. The far harder rebonded foam stops the compression at a specific depth, preventing the entire foam structure from being fully compressed. Thanks to the bielastic fabric, the foam structure only gives way directly under the foot and not in the surrounding area. What's more, the high PU foam content gives viscoelastic carpets very good insulating properties. They also dampen impact and airborne noise.