Let's go: Whether it's a multi-day hiking tour or an action-packed trekking adventure, the Aircontact Core 40+10 from Deuter comfortably carries your gear on your shoulders! This trekking backpack features a 40-liter main compartment that can be expanded by an additional 10 liters via the adjustable lid if needed. It includes a stretch inner pocket, an internal valuables pocket, a lid pocket with a key clip, a separate bottom compartment, two elastic side pockets, a front pocket, generous hip belt pockets, equipment loops, and holders for trekking poles and sunglasses, leaving hardly any packing options unaddressed. The Deuter Aircontact carrying system is designed for trips with heavy loads and optimal weight distribution, fitting comfortably to the body with its ergonomically shaped, length-adjustable back panel featuring a Y-frame and a large central ventilation channel. The 3D Air Spacer Mesh on the back, padded shoulder straps, and hip fins provides extra comfort and ventilation. A continuously adjustable chest strap enhances stability, and a practical load adjustment strap customizes the fit of the Aircontact Core 40+10. Top-notch!.