Thule's new Ascent series is designed to reflect the styling of today's vehicles and handle the carrying needs of active outdoors people and travelers alike. The addition of the Quick Grip¿ mounting hardware adds to the long list of features this box series offers. High grade impact & scratch resistant material sets the Ascent series apart from all the rest. NEW! Quick Grip¿ hardware for easy on/off attachment to roof racks. Access gear from either side of the car using our patented Dual-Side opening feature. Smooth, aerodynamic design for minimal wind resistance. Easy opening and closing with Thule's NO-GO¿ Central Locking, One Key System. Mounts to most factory installed and aftermarket racks. Four box sizes available.