Deuter Aircontact Core 50+10 Backpack Ain't No Mountain High Enough The Aircontact Core 50+10 Backpack is designed to handle multi-day treks and backcountry expeditions with ease. Its comfortable back system provides excellent ventilation and load distribution, reducing sweat and fatigue over long distances. The pack features an expandable 50+10-liter capacity, giving you the flexibility to carry extra gear when needed. With a variety of compartments, including a separate sleeping bag section and multiple gear attachment points, you'll stay organized on the trail. Durable, eco-friendly materials ensure this pack will last for countless adventures through mountains, forests, and beyond. Features Back system, offers optimal load stability and airflow to keep you comfortable Expandable volume, increases from 50 liters to 60 liters for extra storage when required Multiple compartments, includes a large main area, sleeping bag pocket, and additional stash pockets Adjustable fit, with a height-adjustable lid and ergonomic hip belt for a customized carry Gear attachment points, for trekking poles, ice axes, and other equipment Hydration system compatible, ensures you stay hydrated on extended trips Eco-friendly design, constructed with bluesign(R) approved, sustainable materials MFG#: 123459-AC50+10SPECIFICATIONSIntended Use Backpacking Capacity50 + 10 LWeight4. 6 lbs / 2100 g Dimensions30" x 14" x 12"Material600D polyester, 100D nylon Frame Type Internal Frame Hydration Compatible Yes Expandable Capacity Up to 60 L | Deuter | Aircontact Core 50+10 Backpack | Nylon