Features Detachable top lid with internal and external pocket Lid is also height adjustable Detachable top lid converts into a hip pack It also features an extension pack, allowing it to be used as a combined hip pack and backpack Backpack has plenty of attachment points for poles, ice axes, and other equipment Description Bergans Backpack: Popularity is key! This Trollhetta 75L Backpack by Bergans is one of Bergans' most popular backpacks among reviewers and users. The latest enhancements to the pack design, including the new SPINE ADJUSTABLE carrying system, set a new standard in comfort and technical features. Featuring SPINE ADJUSTABLE is a flexible and comfortable carrying system featuring a torso-length adjustment option with height-adjustable top tension straps, combined with a full front zip opening at the front ensures hassle-free access to pack contents, Open mesh side pocket. Large mesh pocket at the front. Internal zip pocket, Expandable zip pocket on the hip belt, Comfortable hip belt with a wide range of motion and sled attachment points, Detachable top lid with internal and external pocket. The lid is also height adjustable. The detachable top lid converts into a hip pack. It also features an extension pack, allowing it to be used as a combined hip pack and backpack, and The backpack has plenty of attachment points for poles, ice axes, and other equipment. Back, shoulder straps, and hip belt with ventilating mesh. Compression straps on each side. Adjustable sternum strap. Hydration system compatible. Grab handle at top. YKK zips. 4697