Attaches to your Roof Rack and securely holds extra cargo for those long trips. Designed specifically for our Crossbars. Low profile design and tapered sidewalls mesh seamlessly with your Mazda and provide easy loading. Included netting keeps items secure while the wind fairing provides a smooth airflow over your cargo, minimizing noise and aerodynamic impact.. You only live once – pack accordingly. Because more storage means more gear and bigger adventures. Bulky items and luggage stay safe, sound, secure and out of the way on your roof. Includes expandable netting.