The Patagonia Black Hole Wheeled 100L Duffel is built for the trips where weight management becomes a real consideration. The TPU-film laminate over the ripstop shell handles the abuse of checked baggage, and the internal compression straps work with the pocket layout to keep a full load organized across long itineraries. What Our Gearhead® Experts Are Saying:"This is the one I pack for the longest trip of the year. The wheels take over when the bag is fully loaded, so I'm not hauling 100 liters on my shoulder through a long terminal."