Fitted hull socks zip closed along the transom to the boat’s rear beam. The boat slides into the cover up to the main beam. Webbing straps allow the cover to be used when the trampoline is fitted to the boat. Drains are also incorporated into the covers which are located near the boat’s centerboard trunk. Standard material selection is Top Gun polyester or Odyssey Soft Touch. As makes/models of A-Cat vary greatly by manufacturer and year, please specify accordingly.