The 103'1" (31.4m) motor yacht B4, built by Astondoa, accommodates 12 guests in six cabins. Her layout is notably flexible, featuring a main deck master suite alongside three VIP cabins and two twin cabins located on the lower deck. This configuration works well for larger groups or families seeking a balance of private retreat and shared living.

Inside, the design by Cristiano Gatto creates a calm and modern atmosphere following an extensive aesthetic refit. Large lateral windows fill the main salon with light, while soft furnishings and light wood finishes define the open-plan lounge. The formal dining area is positioned just forward, offering a refined setting for indoor meals while maintaining a natural connection to the sea views outside.

The deck spaces are arranged for an easy outdoor rhythm, with an expansive flybridge for sunbathing and a shaded aft cockpit for alfresco dining. Forward, the bow seating area provides a quiet spot to take in the horizon. She is equipped with a selection of water toys and features speed stabilizers for comfort both at anchor and underway.