Arc'teryx developed its own fabric to achieve the hardwearing durability necessary for alpine and rock climbing. Prioritizing abrasion and tear resistance, a liquid crystal polymer ripstop grid is incorporated in a high tenacity nylon fabric. Extremely versatile, customizable options and a large 55L capacity suits the needs of multi-day alpine adventures. A removable framesheet and an adjustable, removable top lid give the option to shed weight. Custom webbing daisy chains securely lash gear and ice pick capture accommodates a range of angles.