Arctic Armor Gold Grade Winter Pool Covers are constructed of the strongest and most tear resistant material to protect your pool against the winter elements. Heavier woven polyethylene scrim and coating make the Gold series winter cover strong and able to withstand wind sleet and snow. The cover is U. V. stabilized to protect it from the harmful effects of the sun. It features a black underside to retard algae growth and features heat sealed seams to ensure a crystal clear pool next spring. Our big 5 foot overlap means this cover won t stretch and rip like smaller 3 foot overlap covers. The Arctic Armor Gold Grade Winter Cover is royal blue with a black underside. The Arctic Armor Gold Grade Winter Pool Cover is backed by a 15 year warranty (3 years full coverage). View the attached warranty for more detailed information.