Fortress Full Doors are constructed from solid steel and high-quality polycarbonate windows. Rubber trim around all edges seals your cab from the elements, and a lockable dual latching handle promises a solid close every time and security for your unit. Find a dealer near you today! The door features fixed, non‑operable windows for a clean, streamlined look. Please review Pictures 2 and 3, which illustrate the redesigned door windshield.