Use a neutral oil
It is probably in two parts, with a seperate bodice and skirt
On top of this, you would then suit up in armour, protecting areas such as your head, shoulders, arms, torso and neck
Typically the dresses were added to the collection after the president in question had left office but in 1955 the public uproar to see Mamie Eisenhower's inaugural dress was so strong that the Smithsonian changed their policy and added her dress immediately, not waiting until her husband left office
Whether you're on one of their three sail-assisted yachts, their all-suite former Seabourn ships, or considering their two soon-to-be-launched vessels, you'll be travelling with fewer than 350 fellow guests, with a focus on your itinerary rather than dressing for dinner