Nautical is an aesthetic that refers or related to the sea and to ships or lighthouses. One could mistake the Pirate aesthetic for the Nautical one, but the key difference is the Pirate aesthetic tends to have more chaotic, treasure hunting and adventurous spirits while the Nautical aesthetic tends to be more ordered and lawful, just like the original inspiration : sailor and marine.
Nautical visuals mostly involve images of life on the sea, on a yacht/boat, or even from the shore living in a lighthouse (which differentiates it from a Tropical aesthetic, which tends to have more of a focus on the beach as opposed to the rocky coasts often associated with Lighthouse imagery). This aesthetic also includes or relates with a ship tied up to the dock. This aesthetic gives the feeling of being at sea or ocean or relaxing on a boat or a yacht.
The fashion aesthetic is mostly involved a navy jacket with brass buttons, a crisp white sailor's uniform, a sou'wester hat and yellow slicker, or a fisherman's sweater. Historic traditions in nautical dress continue to influence modern nautical apparel. When it comes to nautical dressing, blues, stripes, and sweaters are staples for a reason. They look great and really reflect the essence of what it should look and feel like to be on the sea. A lot of Resort wear can also be included in Nautical fashion.