At the request of the experienced owners, the shipyard paid particular attention to an extremely solidly designed hull and keel construction as well as redundant safety systems. The owners' previous yacht, the Oyster 825 "Polina Star III", came to questionable fame after the keel of the slip tore off in mid-2015 and the yacht subsequently sank. The yacht's owners and crew were able to escape to a life raft. Judel/Vrolijk designed the hull lines and exterior styling of the Contest 85 CS, which was built as a GRP sandwich, while the interior was designed by Wetzels Brown Partners. Hall Spars supplied the carbon rig, North Sails laminated the 3Di wardrobe. "Polina Star IV" was designed to sail around the world.