"Nautical stripes" refers to a pattern of thin, horizontal lines commonly seen on clothing or objects that are associated with the sea or maritime themes. Full definition
I bought them in dark blue, black and white and wore each of them weekly with nautical stripes, boho blouses and sleek blazers alike. (harpersbazaar.com)
Have you ever wondered how to wear nautical stripes in the fall? (bayareafashionista.com)
Love the star top and nautical stripe shirt — definitely my cup of tea! (theperfectstormbffs.com)