The South Carolina flag has an indigo blue background with a white design. During the Revolutionary War the American forces defeated the attacking British fleet at Charleston in June 1776. A palmetto log fort (later named Fort Moultrie) on Sullivans Island withstood the British cannon balls, and the palmetto tree was subsequently given a prominent place on the South Carolina flag. The canton contains a white crescent.
South Carolina flags for outdoor use are constructed of a durable nylon fabric especially developed for flag use. Nylon's tight weave provides maximum beauty and flyability as well as brilliant, fast colors. Its weave helps shed pollution, dirt and grime that the looser weave alternatives absorb. Nylon is water repellent and mildew resistant.