Jetty is engineered with 100% solution dyed polyester. The lightweight construction is ideal for fitted covers that need to be removed and stowed on a regular basis. Jetty is available in two finishes. Standard Jetty features an impervious waterproof backing and is ideal for countless applications including marine covers, outdoor umbrellas and general-purpose applications. Jetty Plus includes a soft, non- woven backing to avoid rub marks when the cover is subject to wind-flap and movement.