Better known as semi-custom covers, Styled-to-Fit boat covers are our best selling, most popular category of covers and for good reason. Value. Our Styled-to-Fit boat covers are designed to accommodate all popular hull styles and boat configurations. For example, a 21′ V-Hull Runabout boat cover will fit a 21′ V-Hull Runabout Sea Ray, Bayliner, Four Winns, Stingray, etc. The cover is not custom to the specific boat, but a highly fitted cover designed to accommodate the primary characteristics of the boat style. Our Styled-to-Fit boat covers are great for travel*, mooring and storage.