Allpa X 4l Hip PackExplore hands free. Perfect for a life in transit, Allpa X is one of our most comfortable packs you might even forget you're carrying it. Wear around your hip or crossbody, and feel free to mix it up. When you're done using it, store it in your Allpa Travel Pack's top pocket. But Allpa X isn't just for walking: When you're boarding your flight, don't forget to take it out of your carry on for the ideal in flight buddy pack.