The Camelbak Pursuit 24 LR hydration running backpack is a perfect solution for those who are preparing for an exciting adventure in the woods or a weekend away in the mountains & offers plenty of storage space for all the hiking essentials such as trail maps, extra layers, snacks, sunglasses, trekking poles & a headlamp. It is made from a lightweight, yet durable material & ensures proper ventilation thanks to SV back panel, whereas an included 3L Antidote® lumbar reservoir with Quick Link system helps to stay hydrated during long-distance hikes & uses anti-microbial Hydro Guard technology to prevent the build-up of bacteria.