ARB's Simpson III Rooftop Tent and Annex boast a luxurious, practical design for camping and touring adventurers, providing a raised living space for quick access to outdoor exploration. Features & Benefits Include: waterproof, ripstop poly-cotton canvas; all-weather zip-on annex; insect-screened windows/door; 635mm high-density foam mattress; all aluminum construction; retractable anodized aluminum ladder; bungee cord system; grab straps; and universal fitment to flat roof bar systems.