Now all Semi-Custom covers include tie-downs and shock cord in hem for a custom fit against your hull. Taylor Made Products semi-custom boat covers are designed to fit several makes and models of boats with same hull styles. This means that the windshield pocket is in the average position for this range of boats. Your boat may differ. IMPORTANT: To choose the correct semi-custom fit cover for your boat, you must know the beam width and center line length of your boat!