It is well known that Mylar Shades are very important to navigation when going into the sun. Bright sun glare can be blinding, and very dangerous. We have been told by several captains of situations where accidents were averted because they had our Mylar shades installed. The cost of our high quality Mylar Shades is a good investment. They are made very durable, specifically for use on ships. They are highest quality, reasonably priced, and will offer many years of dependable service.