Big space, sleek lines, glossy finish – the Thule Motion XT XL Cargo Box delivers exceptional cargo capacity with a clean, modern design. Big enough for extended trips with a car full of friends, loading up the entire family's ski gear, or heading out on ultimate endless road trip. This spacious box easily fits most cross bars and allows full trunk access. The Motion XT XL is a stylish and spacious roof-mounted cargo box, optimized for ease of use.