Promise.D is built to Ice Class notation and has full explorer functionality. The yacht joins other famous Feadship explorers such as Promise., Andiamo, Sherpa, and Shinkai. With exterior design by Studio De Voogt and interior designer Bannenberg & Rowell, she is equipped with electric propulsion and azimuthing thrusters for a top speed of 15 knots and a range of 5,000+ nautical miles. She can accommodate twelve guests in six luxurious staterooms.