The RTT XL is everything you love about our standard rooftop tent—just 6 inches wider. That extra width makes all the difference: it’s a perfect match for the Ineos Grenadier, with optional direct-fit mounts for a clean, factory-like install. It’s also the exact width of our XL truck topper, so if you want to run your RTT XL on top of your GFC XL topper (available for full-sized trucks like Tundra, F150+, Ram 1500+ etc), it’ll line up perfectly for a seamless look and aerodynamic fit. Same rugged build. Same lightning-fast setup. Just more room to stretch out.