The Nitron18L pack is remarkably stable and streamlined, fine-tuned for day hikes and fast-moving mountain missions. Featuring a lightweight, modern design and on-the-go access to pockets, it keeps you pushing onward without holding you back. Made with a comfortable vest-style harness and a flexible, body-hugging back system, it maintains stability and provides dynamic movement on all terrain._Bounce-free movement thanks to the close-fitting vest-style harnessElasticated double chest strap provides security at a high pace while stretching when you're breathing hardTough 100D ROBIC nylon ripstop fabric is strong, lightweight, and withstands being hauled over rough groundGrab kit quickly with the zipped entry, handy top pocket, and large front stashVersatile pole storage, using either the classic attachment points or the side stash pockets which can accommodate z-polesKeep moving with on-the-go access to essentials in harness pocketsStay hydrated with space for a 3L water bladder and soft flask harness pocket (soft flask not included)Weight: 0.56kg / 1lb 4oz(M-L)Volume: 18L/ 1100cu.inDimensions: 47 x 25 x 20cmBack system: Air ContourBack length:19"/48cm