Who knew I could get so stoked about a suitcase? Arc’teryx’s new Rolling Duffel is an external-frame duffel that weighs little (7.5 lbs for the 80L) but holds a lot. This bag gave me more leeway to take cams I might or might not need before hitting that airline-imposed 55-pound weight limit. The design is straightforward: A loop of aluminum holds a massive heavy-duty nylon black hole of a bag, available in 80- and 110-liter sizes. A wrap-around, U-shaped zipper provides easy access, and large wheels roll smoothly over any terrain. Despite one adjustable flap and internal zipper pocket, the inside is mostly empty space, with little by way of organization. I had no problem cramming in everything for a week in Slovenia, including a 70-meter rope, 20 draws, helmet, rack, multiple pairs of shoes, clothes, and even a 32-liter backpack. Better yet, the parts are modular and can be replaced easily. For big trips, Arc’teryx’s new duffel is a game-changer.