Gain privacy during down time and keep your cab temperature comfortable all year long with ZenEclipse blackout window covers. Specially designed for the long haul, these 7-layer quilted window cover are heavy-duty and roll up to store easily. Quit fighting with claustrophobic curtains and upgrade to ZenEclipse today! Aluminum Mylar barrier and 1/4" foam layer help regulate the interior temperature by stopping the transfer of both hot and cold through the glass.