There are two hull covers available for the Viper 640, depending on your trailer configuration.
This Viper 640 Hull Cover is much the same as the traditional hull cover, but it has a Velcro keel sock that helps protect it during travel. This is helpful for more exposed trailer setups where the bulb and strut are more exposed.
Both Hull Covers are made with Top Gun Fabric, an acrylic-coated texturized woven polyester. Its multi-ply construction accounts for its unmatched wear-ability, toughness and abrasion resistance. Top Gun's coating will not harden, crack or peel in the widest range of heat and cold; it sheds water with incredible efficiency.