In The Swim 16 Mil 16 x 32 ft. Ultra Clear Rectangle Swimming Pool Solar Blanket Cover 16-mil thick solar blanket constructed from UV-stabilized resin Features an aluminized bottom layer for highly efficient heat transfer Reduces chemical loss through evaporation, saving time and money on chemicals and rebalancing Can be easily cut or trimmed to fit kidney, oval or irregularly shaped pools Backed by an 8-Year Limited Manufacturer's Warranty