UPPAbaby Know/Alta Travel Bag 81003009229 Our Travel Bag insures your Knox or Alta so you can travel with ease. By registering your Travel Bag online, our TravelSafe program covers any damage incurred to your car seat during air travel. Features Durable luggage grade fabric protects your Knox or Alta during travel Four spinner wheels allow for smooth, rolling transport Collapsible material folds flat for easy storage when not in use Comfortable handles on top and side for rolling or carrying Front luggage tag pocket for quick identification UPPAbaby Know/Alta Travel Bag