Features Enter your model number to make sure this fits. Material: [body] 300D polyester, [base] 600D nylon Volume: 1709 + 427 cu in Support/Suspension: V-frame, EVA back panel Shoulder Straps: AirMesh Hydration Compatible: yes Description Product Description Load up everything you need for an afternoon at the crag or a day in the alpine in the Mammut Trion Tour 28 Plus 7 Backpack. This well-rounded pack is great for fast and light ascents or mellow days at the crag thanks to its close-fitting cut and array of climbing-specific features. In addition to its height-adjustable lid with two zippered pockets, the front of the pack is also fitted with ice axe loops, daisy chain gear carriers, and a rope fixing strap under the top lid. A hydration system compatible design allows you to stay properly hydrated during the approach, while padding at the back, hips, and shoulders ensures the pack stays comfortable while you mob back to the car after another successful summit bid.