The main characteristics are the layout of the deck plan, with large areas for passengers, organised into two cockpits: a central one for guests and one from which to skipper the craft, with all of the main adjustments, properly arranged around the wheel, which is large in size and therefore more practical for cruising use. The deck design also stands out for the low, continuous deckhouse, from bow to stern. The mast and booms are in carbon. “Mattone 4” is a very fast boat, thanks to medium-light displacement but also to a significant sail surface and long extensions. The interiors have the master cabin amidships – the most stable point of the craft while sailing, with a double bed under the central cockpit, in a position where the engine is usually to be found, except that this time, together with all of the installations, the engine has been moved to an area under the stern cockpit. This solution has been made possible by the increasingly light weight of installations which therefore no longer risk compromising trim as well as being perfect with the powerful hull lines of “Mattone” with its large volumes aft. Also in the interests of comfort, the dunnage in the master cabin is lower than on the rest of the craft as well as being full beam. Continuing forward, there are two more cabins, with a large shared bathroom: a double, offcentre cabin on the port side bulwark and a twin with the beds set out in a V. A fourth double cabin aft has an independent entrance from the deck, like the two in the bow.