Fabric Upper Doors. Rigid upper door frames integrate easily with standard equipment half doors to enhance comfort. Thermoformed panels help keep out inclement weather and enhance comfort of occupants. Fabric is water-repellent and provides superb UV and abrasion resistance as well as mold / mildew resistance. Double zipped, polished vinyl windows roll down increasing airflow through the cab. Polished vinyl windows are resistant to cracking in extreme cold. Note: Honda Accessory Lower Door Panels (sold separately) required for full door coverage. NOT compatible with Honda Accessory Side Mirrors. Requires Honda Accessory Fabric Rear Panel and Lower Door Panels (sold separately).