"The Patagonia Black Hole 100L Duffel Bag is the largest non-wheeled option in the Black Hole lineup, sized for the trips where everything has to come along: extended backcountry travel, multi-week expeditions, or any journey where a smaller bag means leaving something critical at home. When the itinerary shifts from airport to trailhead, the padded backpack straps and convertible carry system mean the bag moves with the trip rather than against it. What Our Gearhead® Experts Are Saying:""I reach for this one when the trip is long enough that I can't afford to leave anything behind. The 100-liter capacity swallows a full week of gear plus the extra layers I always end up needing."""