Lissoni's interior language favors airy volumes and balanced proportions, with large mirrors placed through the common areas to draw in natural light, paired with a palette of light, neutral materials. The main deck holds the master cabin, with a VIP cabin forward on the deck below alongside two further guest cabins. A sculptural metal staircase threads between decks as a defining architectural feature of the layout.

Exterior lines by Zuccon International Project bring cut-out bulwarks and a reverse windscreen to her profile. Aft, fold-down side terraces open to port and starboard at anchor, extending the beach club into a broad, sea-level gathering space. A semi-enclosed flybridge above houses the helm and doubles as a shaded skylounge, closed underway or opened at rest, with teak decking carried across her outdoor areas.

Four Volvo Penta IPS 1050 D13B diesel engines deliver a combined 2,388kW (3,200hp) through pod propulsion, giving SANLORENZO SX100/121 a cruising speed of 20 knots and a top speed of 23 knots. Her semi-displacement monohull, built in composite construction with a GRP superstructure, carries her 1,400 nautical miles at ten knots.

SANLORENZO SX100/121 offers the opportunity to own a 200 GT, four-cabin, Italian-built motor yacht.