Hunter Marlow 40 Boom Tent Style Winter Cover. Our latest Hunter winter cover is fabricated using a Polyester Fabric called Top Gun. The Hunter Marlow 40 boom tent style winter cover is fabricated with an access door, six vents secure tie-downs, and a fully finished draw cord skirt. The Hunter Marlow 40 boom tent winter cover is built to last and provide years of coverage. Call to order before the snow falls!