In areas where humidity is not a concern, 100% marine polyester is a great fabric to use for a trailering  cover. Its light weight makes it easy to handle and the tight weave of the fabric really keeps out the fine dust. This fabric has a full 3 year warranty. Great for areas with high UV problems. All 6.5 oz. polyester covers are available in blue, gray, black, forest green, burgandy or beige.