Roof platform for mounting racks and accessories Low profile design redirects airflow to reduce noise and drag for improved fuel economy Load capacity up to 330 lbs / 150 kg. Please also check the maximum roof load capacity of your vehicle Mounts directly to Thule Evo foot packs for a low-profile, sleek design, or to third party and factory racks with Thule Caprock Crossbar Kit (sold separately) Adjustable base crossbars allow for customized fit to vehicle