The Hydro Trail 17 comes equipped with a 3L ALPS hydration reservoir, but is so much more than just a hydration pack. The pack features a large main storage compartment, a front organizer pocket, stretch side pockets, trekking pole loops and side compression. A suspended mesh back panel allows for enhanced breathability and airflow without compromising fit. Complete with reflective details and a built-in rain cover, the Hydro Trail 17 is an all-in-one pack perfect for hauling your most essential gear. Features: - 3L ALPS hydration reservoir - Lightweight 200D nylon double ripstop fabric - Suspended mesh back panel - Removable sternum strap - Front organizer pocket - Trekking pole loops - Side compression - Stretch side pockets - Reflective details - Includes rain cover - Weight: 2 lbs. 2 oz. - Capacity: 1038 in3 / 17L