The Nano 18 H2O includes a quick-drying 3-liter Hydro reservoir in a separate zippered compartment for hydration on the move. It features a grooved foam back panel for airflow, padded shoulder straps with a magnetic sternum buckle, and integrated hydration routing. The pack has a top drawcord opening, zippered pockets, reflective loops, a removable webbing hipbelt, and a padded haul handle. It uses durable water repellent (DWR) without PFAS and incorporates recycled materials to reduce its carbon footprint by 40%.